Question

Colin rides his bike 10 and a half miles every morning and 12 and 1/4 miles every afternoon on Monday he wrote his usual distance in the morning but in the afternoon he rode one and a half fewer miles how many miles did Colin ride on Monday

Answer 1

12 1/4- 1 1/2 >>> Convert fractions to decimals:
12.25- 1.5 = 10.75 >>> Convert decimals back to fractions:
10 3/4 >>> Add miles from the morning:  10 + 10 3/4 = 20 3/4 miles