4/5 divided by 5 1/4

Question

how many days will the cereal last

Answer 1

4/5 divided by 5 1/4 =

(4/5)/(21/4) = (4/5)(4/21) = 16/105

or you could solve it with decimals

4/5 = 0.8

5 1/4 = 5.25

.8/5.25 = 0.152 rounded off to 3 decimal places

16/105 = 0.152 rounded off to 3 decimal places