48÷2(9+3) = ???

[-Karl-]

I'd say 288 but I havnt practised math properly in years.

 

[Datdude87]

................................................

...both answers r right...math lost...

.........................

 

[xtraill]

48÷2(9+3) = 288

When using P.E.M.D.A.S. its:

Innermost Parenthesis
Exponents
Multiplication and Division from left to right
Addition and Subtraction from left to right

Multiplication and division are equal on the order of operations level; whichever one is first going left to right, you do first.
The same thing goes for addition and subtraction.

 

[MorganFreemanKing]

48÷2(9+3) = 288

When using P.E.M.D.A.S. its:

Innermost Parenthesis

Exponents

Multiplication and Division from left to right

Addition and Subtraction from left to right

Multiplication and division are equal on the order of operations level; whichever one is first going left to right, you do first.

The same thing goes for addition and subtraction.

But in this case multiplication is a parenthetical operation and supersedes the division operation.

Seems that people are only doing part of the parentheses step.

If is was 48 ÷ 2 * (9+3) 288ers would be correct.

But as long as parentheses are present they must be accounted for completely before anything else takes place.

 

[traestar]

I think it comes out to this statement: Multiplication and Division -- Simplify multiplication and division in the order they appear
from left to right

And thats after you solve inside the parenthesis
http://www.barstow.edu/lrc/tutorserv/handouts/087 Order of Operations.pdf

 

[major pain]

they are being accounted for completely fool.

48÷2(9+3) = 48÷2x(9+3)

theyre the same equation

48÷2(9+3) = 48÷2(12) = 48÷2x12

as soon as what's in the brackets has been simplified to the fullest, you take the brackets away and solve from left to right.

This is what you dont understand. The problem is ambiguos. Those are NOT the same problem. As written, the problem does not specify if the (9+3) is in the denominator or not. In a real setting you will not see a problem like this because of the way it is written.

 

[major pain]

the problem isnt a fraction tho

LOL says who? its all about interpretation..

 

[T. Sanford]

answer is math error

 

[MorganFreemanKing]

Smh @ just "taking the brackets away" the PEMDAS sequence was made for this reason. PARENTHESES (double smh @ brackets) are not solved until they are solved. Just because a figure is outside of the parentheses doesn't mean its not a parenthetical operation. Making the 2 adjacent makes 2(9+3) a single quantity and should be addressed as such

 

[dominique19]

2 you always do parentheses first

 

[UPTOWN]

this is the greatest thread in the history of this upgrade. im gonna print out every page of this thread and ship it off to the library of congress in DC LOL

 

[UPTOWN]

and im the only one who knows the real answer and why LOL

**evil laugh** LOL!!!!

 

[UPTOWN]

it all comes down to if you multiply or "divide" first after the parenthesis

LOL!!!!

 

[UPTOWN]

c'mon son...

theres actually one other thing that i havent seen anyone pick up on yet .... thats why im laughing. but i didnt read the whole thread so ionno

 

[glowy]

The answer is 288, if it were 2 it would be written like this.
48 / (2 * (9 + 3)) = 2

But it's not written like that, it's written like this.

48 / 2 (9 + 3) = 288

^ Basically the 2 is not within the parentheses, so you're free to do 48 ÷ 2 after doing 9+3

9+3 = 12

48 ÷ 2 = 24

12 * 24 = 288

 

[fiat_money]

I called it a "math troll" for a reason.

The fraction version is the one with the straightforward solution.

But you won't understand what I mean by that.

Well what did you mean by that?

 

[UPTOWN]

Well what did you mean by that?

i think were on the same page here LOL

 

[fiat_money]

Well what did you mean by that?

As I wrote earlier, all numbers can be written as fractions. For this reason, the fraction form of the problem is straightforward, since it's simply the fraction multiplied with the values in the parenthesis; and since the "/" operand only applies to the numbers directly before and after it. This is also the way calculators interpret fractions.

The division version, on the otherhand isn't so simple, as the "÷" symbol is often used to represent a long division operation. So the answer depends on how the "÷" symbol is interpreted. Calculators usually interpret the "÷" operand as long division symbol.

But the "÷" symbol can also be interpreted as a fraction symbol ("/"), in which case it becomes the above example.

However, it's not an issue of the orders of operation as people have been assuming.

Math with fiat.

 

[cuttadc13]

smh...this can be rewritten as:

48 / (2*9 + 2*3)

Which leaves us with

48 / 24 = 2

Answer = 2.

 

[SunflowaSeeds]

This shit is all over the internet. Still say 288.