Question

Which of the following is a common denominator of 3 4 and 1 5 ? A. 35 B. 20 C. 15 D. 30

Answer 1

the answer is b 20

Answer 2

B. 20

Explanation:

We are given rational number as

`(3)/(4)` and
`(1)/(5)`

We can see that

denominators are 4 and 5

So, we will find common denominator

So,

Common denominator is

`=4* 5`

`=20`

So,

A common denominator is 20