SOLUTION: Please help me with this: -3/5[2/3-1/2(3/4-1/2)]= I keep coming up with -1/40 as the answer but the answer sheet says -13/40. I did the order of operation first then every other

Algebra ->  Average -> SOLUTION: Please help me with this: -3/5[2/3-1/2(3/4-1/2)]= I keep coming up with -1/40 as the answer but the answer sheet says -13/40. I did the order of operation first then every other       Log On


   

Question 328184: Please help me with this: -3/5[2/3-1/2(3/4-1/2)]=
I keep coming up with -1/40 as the answer but the answer sheet says -13/40.
I did the order of operation first then every other way thinkable and keep coming up with the wrong answer.
Found 2 solutions by Fombitz, Alan3354:
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!

-%283%2F5%29%282%2F3-1%2F2%283%2F4-1%2F2%29%29=-%283%2F5%29%282%2F3-1%2F8%29
-%283%2F5%29%282%2F3-1%2F2%283%2F4-1%2F2%29%29=-%283%2F5%29%2816%2F24-3%2F24%29
Take it from there.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
-3/5[2/3-1/2(3/4-1/2)]
= -3/5[2/3 - 1/2(1/4)]
= -3/5[2/3 - 1/8]
= -3/5[16/24 - 3/24]
= -3/5[13/24]
= -39/120
= -13/40