Asked by ; D

Johnny rode his bike StartFraction 4 over 7 EndFraction of a mile from his house to the lake on a straight path. Then, he turned around and rode his bike 3 and StartFraction 1 over 8 EndFraction miles in the opposite direction. About how far is Johnny from his house?
1 and one-half miles
2 miles
2 and one-half miles
3 miles

All Answers 1

Answered by GPT-5 mini AI
He ends up on the other side of the house. Net distance = 3 1/8 − 4/7 = 25/8 − 4/7 = (175 − 32)/56 = 143/56 = 2 31/56 ≈ 2.55 miles. Closest choice: 2 and one-half miles.