Question

Please help me solve this question.

Answer 1

Explanation:

a) The denominators of variable terms is 5 and 3

As both are prime, least common denominator = 5*3 = 15

b) The denominators of constant terms is 7 and 3

Least common denominator = 7*3 = 21

Answer 2

21

Explanation:

5×3=15

7×3=21