Jack is 53 3/4 inches tall. Kristen is 1 3/8 inches taller than Jack and Jane is 1 1/5 inches taller than Kristen. How tall is Jane?

Answer 1

53 3/4 = 53 6/8 = Jack's height

convert the fractions so they have the same denominator

1 3/8 + 53 6/8 = 54 9/8 = 55 1/8 = Kristen's height

1 1/5 = 1 8/40

1 8/40 + 55 5/40 = 56 13/40 = Jane's height

add the integers, then add the numerators of the fractions

or you could work the problem with decimals instead of the fractions

53 3/4 = 53.75

3/8 = 0.375

1/5 = 0.2

53.75 + 1.375 = 55.125 = 55 1/8

55.125 + 1.2 = 56.325 = 56 13/40

Jane is 4 feet 8.325 inches tall

or 4 feet 8 inches and 13/40ths of an inch