Question

Ella spends 2/3 hour practicing the piano each day. She also spends 1/2 hour jogging. What is the common denominator of the fractions?

Answer 1

The common denominator is actually 6.

1/2 is the same as 3/6,
2/3 is the same as 4/6,
and therefore the least common denominator (LCM) is 6.