Question

A piano teacher has 4 1/2 hours available to teach in a night. Each lesson will last 1 1/2 hours. How many lessons can the teacher schedule in a night?

Answer 1

change the mixed numbers into improper fractions

4 1/2 = (2*4 +1)/2= 9/2

1 1/2 = (2*1+1)/2 = 3/2

9/2 divided by 3/2

9/2 * 2/3 = 18/6 =3

She can schedule 3 lessons per night