Question

Which number will make the two fractions equivalent? 6/7=?/21

Answer 1

6/7 = 18/21

Explanation:

Least Common Multiple

7, 14, 21 = 3

-

6 x 3 = 18

6/7 = 18/21

Answer 2

18

Explanation:

Since 7×3=21

Then 6×3=18

We times top and bottom by 3 to make it equivalent.