Question

a road is 4/7 of a mile long. a crew needs to replace 4/5 of the road. how long is the section that needs to be repaired

Answer 1

To solve this problem we need to find the fraction of a fraction, for that we just have to multiply them. This is done below:

`(4)/(7)\cdot(4)/(5)=(16)/(35)\text{ of a mile}`

The section is 16/35 of a mile long.