Question

Mulitiply4/5 x 20

Answer 1

Ok so same thing here you want to put the 20 into fraction form.
4/5 (20/1)

Answer 2

Then you just do normal multiplication for both the top and bottom

Answer 3

4(20)=80
5(1)=5
your equation should now look like this:
80/5
simplify by using division 80/5=16
your answer is 16