The numbers are coprime so their LCD is their product which is 7*5*2 = 70
280
Somone put 30, but seven doesnt go into it
The least common denominator of three fourths and five sixths is twelve.
The least common denominator of five sixths and one fourth is: 12.
Denominator of seven eights, ie of fifty six is 1. The denominator of five sixths is 6 so the common denominator is 6.
A common denominator, though not the least one, is 110.
the answer is five
20
Which you don't want. You want the least common denominator, which is 360.
420
210
24