Question

The second one write it on the paper and take a picture

Answer 1

The common for the second question is 30

Answer 2

39/30 Here 30 will be common in denominators

Explanation:

6/15×2/2=12/30

3/10×3/3=9/30

3/5×6/6=18/30

= 12/30+9/30+18/30

39/30