Simplify (9/16)-3/2 ?

Question

(9) -3/2

----

(16)

A) 9/4 B) 4/9 C) 64/27 D) 27/8 E) NONE OF THESE

Answer 1

the answer is C)64/27

first find square root of 9/16

which is 3/4

then cube 3/4

which is 27/64

but since the exponent is negative u reverse it

which gives u 64/27

Answer 2

Ok, its really hard to tell if the first fraction is by itself or seperate. i know it is hard to do on a computer.

If there are 2 fractions and the bottom number (denominator) are 16 and 2, you need to find a common denominator. It can be 16. We need to change the 2 in the second fraction to 16 as well. To do this we need to multiply 2x8. Now take the 8 and multiply it to the top. This answer is 24.

So now we have 9/16-24/16. Subtract and we have -15/16.

I'm wondering if because it is a negative number, that perhaps the question has been written wrong.

Hope this helps. Retype if you need more help.

Answer 3

(9/16)-(3/2)

(9/16)-(24/16)   3/2 multiplied by 8

-15/16

answer is E