So first you would evaluate the power making the 4^3=64 then keep the rest of the problem the same.... then add the numbers 64+8 since their the whole numbers and that would equal 72 so now the problem should be 72-9/y. After that you write all the numerators above the common denominator making the final answer to be 72y-9/y
$30 because 12/6 = 2 so 15 x 2 = 30
0.75 is greater the 0.0075
Finding the
Lowest Common Denominator of:

Here's to find out how it was our LCD:

To find the fraction on the right side we had to multiply (and somewhat divide to get the answer)
So, therefore the Lowest Common Denominator of this question would most likely be:

Good Luck!