In a week, the Robinson family drink 9/2 bottles of orange juiced the Chan family drink 3 and 4/5 bottles. How much more bottles of orange juice do the Robinson family drink then the Chan family?

4 answers

9/2 = 4 1/2 = 4.5

Subtract.
9/2 - 3 4/5
= 9/2 - 19/5
= 45/10 - 38/10
= 7/10
I don't understand??
okay thanks