Question

A girl plants 45 flowers in 30 mins. Determine the unit rate.

Answer 1

45/30 = 3/2

1.5 flowers per minute

Answer 2

So 45 in 30mins

we ususlly want to make the smallest number equal to one or as close to one as possible so
45/30=3/3 times 15/10
3/3=1
1 times 15/10=15/10
15/10=5/5 times 3/2
5/5=1
1 times 3/2=3/2
3 divided by 2 is 1.5
1.5 flowers per minute