Question

which of the following pairs of ratios forms a proportion?
1) 8/9, 12/18
2) 2.3/3.4, 3.0/3.6
3) 21.1/ 14.4, 1.1/1.2
4) 5/2, 4/1.6

Answer 1

proportion => a/b =b/c

Answer 2

It can be d. but directly no one.

Answer 3

okay thank you!

Answer 4

:)

Answer 5

the last one than you simplify the second fraction will be 4/1,6 = 2/0,8

so 5/2 and 2/0,8 form a proportion in this way

hope helped