what is the answer for subtracting the following: 9 2/5 - 8 4/5?

Here is another way to do this problem:

Multiply the denominator (bottom fraction number) by the whole number, then add the
numerator (top fraction number). This new number replaces the old numerator.

EX: 8 3/5 = 8 *
5 + 3 = 43. This is your new numerator. The new, improper fraction is
43/5.

As long as the denominators are the same (in your case they are), you may simply add (or subtract) the numerators, and keep the denominator the same. Then simply the fraction, if the numerator is greater than the denominator.

Please contact me if you have any questions. Thanks!