Question

Pls do only 7a pls




































































I’ll follow and mark as



































Brainily!

Answer 1

Answer:

Step-by-step explanation:

a. Change to improper fraction

21/4÷ -14/5

21/4×5/14= 105/56= 15/8

b. 7/4×10/7= 70/28= 5/2

Answer 2

Answer:

-30/20

Step-by-step explanation:

As improper fraction :

20/4 - 40/5

100-160/20 = -30/20