Ok. PEMDAS says to work in the parentheses. So let's make 4/5 into an equivalent fraction. We know the common denominator is 15, so we can use the identity property, which states that 'anything' times 1 is 'anything'. So 4/5 x 3/3 equals 12/15. Now we an subtract. 12/15-11/15 is 1/15. Now we square it, which we multiply it by the fraction two times. So 1/15 x 1/15 is 1/225 which is 4.444.. so our answer is 1/225.
