Question

what is the difference of the rational expressions below? 13x/5 - 4x/5
a. 9x/5
b. 17x/5
c. 52x/5
d. 52x/25

Answer 1

The answer is:
a. 9x/5

Answer 2

13x/5 - 4x/5
 What you must do in this case is a sum of fractions.
 Step 1:
 Common factor 5 in the denominator
 Step 2:
 Perform subtraction of numerator
 Step 3:
 Rewrite the expression.
 See attached image.
 Answer:
 a. 9x/5