Asked by Cherie

(-1/2)+3/5/[9/10-(3/5)]

I got 1/15 is this correct? I don't think so please help and explain how you did this :)
Answered by Reiny
The rules for the order of operation states

BEDMAS
-> brackets first
-> exponents
-> division and multiplication in the order that they appear
-> addition and subtraction in the order that they appear
so....
= (-1/2)+3/5/[3/10]
= (-1/2) + (3/5)/(3/10)
= (-1/2) +(3/5)(10/3)
= -1/2 + 2
= 3/2 or 1.5

It appears that Wolfram agrees with me
http://www.wolframalpha.com/input/?i=%28-1%2F2%29%2B3%2F5%2F%5B9%2F10-%283%2F5%29%5D+
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