Question

Which ratios can form a proportion

A. 20/25 , 14/21

B. 10/23 , 18/7

C. 5/45 , 4/36

D 5/4 , 4/5

Answer 1

the anawer is d.5/4,4/5

Answer 2

C- 5/45 , 4/36
To find the answer, you have to cross multiply it.
Sorry if the drawing I showed you is a bit messy.