how much did he grow in one month if he grew 4 1/3 inches in 3 1/2 months

Answer 1

set the unit rates equal to each other. Then we cross multiply and solve for (x).

(x)inches / 1month = 4 1/3inches / 3 1/2months

cross multiply.

3 1/2(x) = 4 1/3

you just have to remember the rules for dividing mixed numbers. Turn them into improper factions, change division to multiplication, and take the reciprocal of the second fraction.

13/3 x 2/7= 26/21 inches

change answer back into a mixed number.

1 5/21 inches.