Question

Which ratios form a proportion?
A. 4/12, 6/8
B. 16/12, 3/4
C. 3/2, 15/14
D. 10/16, 5/8

Answer 1

The ones that are equal. You can cross-multiply to check.

Answer 2

i can't do that

Answer 3

Why not?

Answer 4

Can you convert each pair to fractions with common denominators?
That's another effective way.

Answer 5

it would take forever and its too late i need this in by today

Answer 6

You can look them over quickly to see if a fraction reduces to the other one.
You can also eliminate some obviously wrong answers, e.g. if one fraction is an improper fraction and the other is a proper fraction, then they definitely can't be equal to each other.