Respuesta :

Answer:

18

Step-by-step explanation:

Since 7×3=21

Then 6×3=18

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

Answer:

6/7 = 18/21

Step-by-step explanation:

Least Common Multiple

7, 14, 21 = 3

-

6 x 3 = 18

6/7 = 18/21