Question

what is a common denominator of \\(\frac{1}{4}\\) and \\(\frac{7}{10}\\)? (1 point) \\(\bigcirc\\) 10 \\(\bigcirc\\) 20 \\(\bigcirc\\) 30 \\(\bigcirc\\) 32

Explanation:

Step1: List denominators

Denominators are 4 and 10.

Step2: Find multiples of each

Multiples of 4: 4,8,12,16,20,...
Multiples of 10:10,20,30,...

Step3: Identify common multiple

First common multiple is 20. It is a common denominator.

Answer:

B. 20