Question

Rachel hiked 2/5

of a trail. Tim hiked 7/10 of the trail.
Use benchmark fractions to estimate how much more of the trail Tim hiked than Rachel

Answer 1

3/10

Explanation:

7/10-2/5

lcm=10

7/10-4/10=3/10

Answer 2

Tim hiked 3/10 more of the trail than Rachel. Rachel hiked 2/5 which is equal to 4/10 of the trail. Subtract 7/10-4/10=3/10.