Question

Nana can pack a bag of groceries in 6/8 of a minute, at that rate how many can she pack in 15 minutes?

Answer 1

So 1=6/8 minute
1=3/4 minute
multiply both sides by 4
4=3 minutes

3 times what=15
divide by 3
what=5

4=3 minutes
mulitpliy both sides by 5
20=15 minutes

answer is 20 bags