Question

Molly is 54 3/4 inches tall. Nancy is 1 1/2 inches taller than Molly and Jane is 1 1/5 inches taller than Nancy. How tall is Jane?

Answer 1

54 3/4 + 1 1/2 = 55 + (3/4 + 1/2) = 55 + (3/4 + 2/4) = 55 + 5/4 = 56 1/4 inches
Nancy is 56 1/4 inches tall.

Then Jane is 1 1/5 inches taller than Nancy:
56 1/4 + 1 1/5 = 57 + (1/4 + 1/5) = 57 + (5/20 + 4/20) = 57 + 9/20 = 57 9/20 inches so therefore

Jane is 57 9/20 inches tall.

Answer 2

Jane is 57 9/20 inches tall.

Explanation: