Answer: 11/2
Step-by-step explanation:
Turn them into improper fractions, you will get:
13/4 - 7/3
LCM of 3 and 4 is 12. Multiply the numerators as well.
(13 x 3)/(4 x 3)- (7 x 4)/(3 x 4)
39/12 - 28/12 = 11/2
