Question

Which ratio forms a proportion with 18/27?
A. 1/3
B. 2/5
C. 2/3
D. 7/9

Answer 1

C, 2/3

18 divided by 9 equals 2

27 divided by 9 equals 3

Answer 2

C.
`(2)/(3)`

Explanation:

The proportions are nothing but the equivalent ratios.

We are given the proportion =
`(18)/(27)`

We can reduce this proportion using the Greatest Common Factor (GCF).

The GCF of 18 and 27 is 9.

Therefore, dividing the numerator and the denominator by 9, we get

=
`(18divide9)/(27divide9)`

=
`(2)/(3)`

Therefore, the answer is C.
`(2)/(3)`