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3/8 times 2 squared divided by 2/3 + 1/5 = ? Many will get BASIC Math Problem WRONG! 

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Order of operations practice problem - how to solve a math problem using PEMDAS. Learn more math at TCMathAcademy.com/.
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2 июл 2024

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Комментарии : 80   
@Sekhar-wf9hz
@Sekhar-wf9hz 5 дней назад
C) 49/20// 9/4 + 1/5 = 45+4/20= 49/20//
@ernesthakey3396
@ernesthakey3396 4 дня назад
Both BODMAS and PEMDAS rules would be better shown this way: P.E.(D&M).(A&S). So many people just remember that 6 letter acronym they were taught, but forget that both D & M are the same order of operations and should be done together, and similarly both A & S are the same order of operations and should be done together.
@user-cw9qn1nb2n
@user-cw9qn1nb2n 4 дня назад
In about 30 seconds I reckoned the answer to be 2.45, which seemingly equates to 49/20.
@MrMousley
@MrMousley 5 дней назад
3/8 times 2^2 divided by 2/3 plus 1/5 2^2 first 3/8 times 4 divided by 2/3 plus 1/5 now do 3/8 times 4 12/8 divided by 2/3 plus 1/5 'simplify' 12/8 to make 3/2 3/2 divided by 2/3 plus 1/5 flip 2/3 and multiply instead 3/2 times 3/2 plus 1/5 do that multiplication 9/4 plus1/5 LCD of 4 and 5 is 20 45/20 plus 4/20 = 49/20 which is one of your choices !
@panlomito
@panlomito 5 дней назад
Calculated this in my head: 3/8 x 4 = 3/2 and 3/2 / 2/3 = 3/2 x 3/2 = 9/4 then 9/4 + 1/5 = 45/20 + 4/20 = 49/20
@Poult100
@Poult100 4 дня назад
Nice exercise, thank you!
@IstvanWeisz_logoby
@IstvanWeisz_logoby 5 дней назад
Mr Teacher, thank you, you're awesome!!!!!
@maryannshaw-uc1ke
@maryannshaw-uc1ke 4 дня назад
Because I have been watching your programs, I was able to solve this right away!
@dlkline27
@dlkline27 5 дней назад
Got it: 49/20. PEMDAS is the key.
@Matlockization
@Matlockization 4 дня назад
You definitely got my attention with this problem.
@russelllomando8460
@russelllomando8460 5 дней назад
got it 49/20 just fraction conversion 3/8 x 4 = 12/8 then / by 2/3 flip to 3/2 and X = 36/16 then + 1/5 bow tie and X the denom = 196/80 / by 4 = 49/20 thanks for the fun
@faireplaymedia7622
@faireplaymedia7622 2 дня назад
3/8 • 4 = 12/8 12/8 • 3/2 = 36/16 36/16 reduces to 9/4 9/4 + 1/5 = 45/20 + 4/20 = 49/20
@home_yes
@home_yes 5 дней назад
I almost had it but forgot pemdas! Thank you
@user-bs8mi3qw7g
@user-bs8mi3qw7g 3 дня назад
3/8 x 4 = 3/2; 3/2 /2/3 = 9/4; 9/4+ 1/5 = 45/20 + 4/20 = 49/20
@user-ux4rs2nd5p
@user-ux4rs2nd5p 5 дней назад
calculated it in my head.👍
@wayfar948
@wayfar948 5 дней назад
From mind 49/20….easy one , thanks…❤
@osgubben
@osgubben 5 дней назад
Same:)
@josephlaura7387
@josephlaura7387 5 дней назад
c) 49/20
@marshabroers6518
@marshabroers6518 5 дней назад
49/20 I used PEMDAS!! Thanks, Mr YT Math Man!!! 😁
@luiginayerino592
@luiginayerino592 2 дня назад
2.45
@chrisdissanayake6979
@chrisdissanayake6979 5 дней назад
49/20
@Mr._Fit_Atheist
@Mr._Fit_Atheist 5 дней назад
Yup ...still got a bit left anyways, lol...all in my head as well....within a couple minutes
@advancedautomotivemachine4791
@advancedautomotivemachine4791 5 дней назад
Got it :)
@Kualinar
@Kualinar 4 дня назад
49/20 (C) Only used paper for the addition. Well... Some peoples are objectively bad a math. Those are the poor souls with discalculia. Similar to dyslexia, but with numbers. For them, «2», «two» and «3» are indistinguishable.
@thenetsurferboy
@thenetsurferboy 4 дня назад
Some people even think Math is short for Mathematics
@samswift4921
@samswift4921 5 дней назад
C This took several attempts, but eventually figured it out.
@EngorLukeNgoya
@EngorLukeNgoya 3 дня назад
The answer 49/20, but you can simplify.
@user-ny4og2rq4j
@user-ny4og2rq4j 9 часов назад
10 * 2 and 4 * 5 and of course 20 * 1 are the only ways to get 20 through multiplication. 49 is NOT divisible by any of those except 1. So it can NOT be simplified. It can however be turned into a mix number. Which of course would be 2 and 9 20ths
@mossesmadjemite2289
@mossesmadjemite2289 3 дня назад
C)
@lawrencemoore2414
@lawrencemoore2414 15 часов назад
Correction, what sort of an answer is 49/20!
@peacehappyb237
@peacehappyb237 День назад
I got it right!
@georgeriley1280
@georgeriley1280 3 дня назад
1.5
@syedghalib3158
@syedghalib3158 5 дней назад
Old school was BODMAS (Bracket, Off, Divide, Multiply, Add, Subtract)
@gavindeane3670
@gavindeane3670 4 дня назад
The O in BODMAS is Orders, meaning powers and roots. It's the same as Exponents in PEMDAS. BODMAS and PEMDAS are the same thing.
@tsimfang1948
@tsimfang1948 День назад
The answer is 49/20
@dianelewis7469
@dianelewis7469 4 дня назад
49/20👍
@suefernando9746
@suefernando9746 5 дней назад
2 9/20
@schoomzer
@schoomzer 5 дней назад
EZ 49/20
@georgeriley1280
@georgeriley1280 3 дня назад
1
@lawrencemoore2414
@lawrencemoore2414 3 дня назад
what sort of answer is 40/20? How about 98/40 or 147/60? They are all correct, aren't they? Final answers should always be in their simplest forms.
@gavindeane3670
@gavindeane3670 3 дня назад
The answer is 49 ------ 20 Using inline notation that is written 49/20.
@lawrencemoore2414
@lawrencemoore2414 15 часов назад
i meant 49/20!
@gavindeane3670
@gavindeane3670 12 часов назад
​@@lawrencemoore2414Yeah I assumed that was just a typo. It was your original comment I was questioning. 49/20 IS the simplest form of the answer here.
@JustMe-vf3ge
@JustMe-vf3ge 4 дня назад
I learned to turn all into decimals and got 2.45.... doing it the fraction way is confusing to me
@gavindeane3670
@gavindeane3670 3 дня назад
It might be worth thinking about why it's confusing, and seeing if you can get to grips with calculating with fractions. This particular question happened to involve fractions that are easily converted to decimal. But not all fractions are easily converted to decimal so being able to do the calculations with fractions is useful.
@davidgapp1457
@davidgapp1457 4 дня назад
Huh? 3/8 of 4 is 1.5 since 1/8 of 4 is 0.5. Or you could just say 4/8 which is 1/2, then multiply by 3 which gives you 1.5. Next you divide by 2/3? No, you multiply by 3/2. Obviously. So that is 2.25. Then you add .2 and you get 2.45. I would say it took be about 1/10th of a second to see the answer and frankly I know I'm not a rocket scientist. It worries me that anyone would teach in such a way that you end up with 49/20 (which is, of course, 2.45).
@gavindeane3670
@gavindeane3670 3 дня назад
49/20 is the answer. What's the problem with that? If you find it more natural to convert these numbers to decimals then that's fine. 2.45 is obviously a perfectly acceptable way to express the answer too. But there's no basis for assuming everyone else necessarily thinks of the problem that way, and no justification for seeking to force them to do so. This question happens to involve fractions that are easy to work with as decimals, but not all fractions are easily converted to decimals. There is obvious value in being able to do calculations like this without converting to decimal.
@Hewhowalks-fv5mq
@Hewhowalks-fv5mq 5 дней назад
I am 69 and that was easy
@ruchenbarua8334
@ruchenbarua8334 4 дня назад
BODMAS is what we learnt. 2^2=4 Divide first Then multiply You will get 9/4+1/5 LCM=20 ( denominator) Then solve it u get 45+4 =49 (numerator) 49/20 is the answer
@ernesthakey3396
@ernesthakey3396 4 дня назад
BODMAS and PEMDAS are the same - because D and M are same order of operations and you do them all in one step from left to right. Same with A and S, you do those all in one step from left to right, if a subtraction is the leftmost operation at that step you do that subtraction first. Both rules would be better shown as P.E.(D&M).(A&S).
@thenetsurferboy
@thenetsurferboy 4 дня назад
@@ernesthakey3396 Where did you learn that crap? Not in grade 3 I am sure Read Pemdas and Bomdas from left to right
@ernesthakey3396
@ernesthakey3396 4 дня назад
@@thenetsurferboy Given that I have a BS in Mathematics from MIT, I'm pretty sure I know what I am talking about when it comes to algebra. In general, if all you have is a string of multiplication and division, it doesn't actually matter which you do them in, but there can be cases where you need to resolve things left to right. Here's the official definition of BODMAS: "What is the BODMAS rule? The BODMAS rule follows the order of the BODMAS acronym, i.e. B - Brackets, O - Order of powers or roots, D - Division, M - Multiplication A - Addition, and S - Subtraction. The BODMAS rule states that mathematical expressions with multiple operations need to be solved from left to right in the order of BODMAS. Division and Multiplication are considered as interchangeable and depend on which comes first in the expression, as are Addition and Subtraction." Note that last sentence - D and M are interchangeable, and you solve them in the order of which comes first in the expression.
@ernesthakey3396
@ernesthakey3396 4 дня назад
@@thenetsurferboy here it is restated slightly differently from another source, but same thing D/M are resolved at the same time, left to right: "BODMAS meaning When presented with a number sentence containing more than one operation (such as 3 + 4 x 2), the operations cannot be completed from left to right, but instead in their order of “importance,” which is what BODMAS stands for. BODMAS stands for: Brackets Orders Division/Multiplication Addition/Subtraction “Orders” means square roots and indices (which you may know as square numbers, powers, or exponents)."
@ernesthakey3396
@ernesthakey3396 4 дня назад
@@thenetsurferboy note that PEMDAS puts multiplication first, while BODMAS puts division first, but both are legitimate - that's because in BOTH cases which one is shown first in the mnemonic doesn't matter because you do both during the same pass, just start at the left end of the expression and proceed through it, doing whichever one comes along. Obviously that pass is done after first resolving all sub-expressions in parentheses and then resolving all exponents ie orders.
@delfii1000
@delfii1000 4 дня назад
Too much talk. This guy takes forever due to a lot of extraneous bs. You need a time limit. Shut up and calculate.
@nfpnone8248
@nfpnone8248 4 дня назад
I can’t believe you wasted over 20 minutes on this problem, especially since all you did was confuse people. There is no PEMDAS necessary for this problem, the solution has nothing to do with order of operations, other than you add the 1/5 at the end. The first thing you must recognize immediately is you invert and multiply giving you 6 after canceling which you multiply by 3/8 which is 18/8 = 9/4, which you then add 1/5, which gives 45/20 + 4/20 after you find the least common denominator which gives the result 49/20. Notice I didn’t use PEMDAS, and I didn’t work it left to right!
@Surreal_Wizard
@Surreal_Wizard 5 дней назад
Hmmm... I get E) None of the above; because it comes out to 7/5. (or 28/20 before being simplified to 7/5.)
@bonilsson6349
@bonilsson6349 5 дней назад
My calculator and I got 9/20 .... 2^2/2/3 *3/8+1/5 !?
@gavindeane3670
@gavindeane3670 18 часов назад
You need to put the 2/3 in parentheses.
@pas6295
@pas6295 5 дней назад
3/5
@floraflowers4897
@floraflowers4897 5 дней назад
25
@ChasOnErie
@ChasOnErie 5 дней назад
NO… 45 /26
@richardvanzyl3600
@richardvanzyl3600 5 дней назад
49/20
@user-jj3hi3gh4u
@user-jj3hi3gh4u 2 дня назад
2 9/20
@BanksfMax
@BanksfMax 5 дней назад
1
@Vicenzacalcio2
@Vicenzacalcio2 4 дня назад
49/20
@richardsmith3905
@richardsmith3905 4 дня назад
49/20
@syedghalib3158
@syedghalib3158 5 дней назад
1
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