Evaluate 23-7 divided by (1/3+1/4)

- anonymous

Evaluate 23-7 divided by (1/3+1/4)

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- anonymous

the question is not clear. Use the equation toolbox and write down your question. You can type in the equation use the Equation button just underneath this area.

- anonymous

\[23-7\div(1/3+1/4)\]

- anonymous

thanks for telling me about that...I didn't know how to input my equation.

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## More answers

- anonymous

np. so, first evaluate 1/3 +1/4

- anonymous

i find the LCM of both of the them right? If so it's12

- anonymous

right, so 1/3 = 4/12 and 1/4 = 3/12

- anonymous

that's what I got. yay! okay now we add them it becomes (7/12)

- anonymous

okay great! so what is 7 / 7 / 12?

- anonymous

dividing right 7/7 = 1 and 7/12 = 1.71

- anonymous

huh? no. it is
\[7 \div (7/12)\]

- anonymous

you have to be patient with me. I haven't done math in 8 years. :(

- anonymous

\[7\times12/7\]
7 and 7 cancel out. so the answer is 12.

- anonymous

23-12 = 11 is your final answer.

- anonymous

oh...I see what I did wrong. duh!

- anonymous

heh. \[a \div b = a \times 1/b\]

- anonymous

So if I was going to do this problem..... (0.95-0.68)x6. I would do whats inside the parenthesis first and complete it before I move on to multiply. That rule goes for all with parenthesis......

- anonymous

yes. you should always follow order of operations
http://en.wikipedia.org/wiki/Order_of_operations#The_standard_order_of_operations

- anonymous

PEMDAS
Please, Excuse, My, Dear, Aunt, Sally~~~

- anonymous

P - Parenthesis, E= exponents, M = Multiplication, D= division, A = addition, S = subtraction ^_^ and + always start computing from left to right

- anonymous

also, BODMAS.

- anonymous

it's weird though, but I don't have an aunt called sally o_o lol, but anyhow, hope this sets things right ^_^

- anonymous

LOL! what does that stand for?

- anonymous

yeah. I am still learning how this all works again. We are working on equations and decimals, and word problems. I am having such a hard time with this stuff.

- anonymous

nah, you'll get through with it in no time ^_^

- anonymous

B
Brackets first
O
Orders (ie Powers and Square Roots, etc.)
DM
Division and Multiplication (left-to-right)
AS
Addition and Subtraction (left-to-right)

- anonymous

lol, my dear aunt sally statement is better :D

- anonymous

I always used aunt sally

- anonymous

oh well, I was taught bodmas. its all the same.

- anonymous

likewise LOL, I know dhat ^_^

- anonymous

sigh, I miss school lol

- anonymous

lol, yeah. I would be so smart at it now!

- anonymous

yep! >_< and I'd get 100s and As all over the place

- anonymous

true. :)

- anonymous

^_^

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