Find the L.C.D. of each of the following groups of fractions and then express the fractions of each group in terms of the L.C.D. of the group.

1/3, 3/5, 21/25, 13/15

1 answer

Is the LCD 75? Then
1/3 = ?/75 =
Here is the way you convert. Divide 75 by 3 and multiply by 1. so ?/75 = 25/75. You can check to see that you are correct by dividing both 25 and 75 by 3 to obtain 1/3. The others are done the same way. We shall be happy to check your answers if you post them. Post your work if you get stuck.