Question

Which ratio forms a proportion with 7/14

a) 5/12

b) 2/5

c) 4/9

d) 3/6

Answer 1

Answer: 3/6

Explanation:

Anytime you want to figure out the ratio, you divide the denominator (bottom number) by the numerator (top number).

First divide 14 by 7 and you get 1/2 (or 0.5 if you used the calculator). Now do this for each of the others until one matches or has the same ratio.

a) 5/12 : 12 ÷ 5= 2.4 * Not a match

b) 2/5: 5 ÷ 2= 2.5 * Not a match

c) 4/9: 9 ÷ 4= 2.25 * Not a match

d) 3/6: 6 ÷ 3 = 0.5 This is a MATCH!!!