Question

Are the ratios 3:9 and 21:27 equivalent? Why or why not?

Answer 1

Answer: No

Explanation:

No there are not since 3 times 7 = 21 and 9 times 3 = 27. The numbers that are used to multiply for the answers, 7 and 9, are not the same so therefore both ratios are not equivalent.

Answer 2

Not equivalent

Explanation:

Given:

• 3:9 and 21:27

We see that

• 21:27= 7:9

Comparing:

• 3:9 < 7:9

They have same denominator but different numerator, hence they are different