Answer:
5/14
Step-by-step explanation:
- Sam takes the bus 4/7 of the distance from home to school. The remaining distance is 7/7 - 4/7 = 3/7
- He then walks one block to his friends house and rides with the friend the remaining five blocks to school.
So the remaining part of the journey i.e 3/7 was divided into 6 parts.
Hence Sam rode 5/6 × 3/7 = 5/14 of the trip.