Question

What is the common denominator of 7/10 and 2/3

Answer 1

we have

7/10 and 2/3

so

10=2*5

3=3*1

the LCM=2*5*3=30

therefore

the answer is 30

Rewrite the fractions with the common denominator

7/10 -----> multiply by 3/3 ------> 21/30

2/3 -----> multiply by 10/10 ----> 20/30