math
posted by elise .
how many pieces of ribbon each 4.5 cm long can be cut from alength of 4 and a half metres?

100 cm = 1 meter
4.5 meter x 100 cm = 450 cm
450 cm / 4.5 cm = number of pieces of ribbon
450/4.5 = ? 
100

A welder cuts 3/4m long pieces from a steel rod that is 5 and 3/4m long.Write an expression for the number of lengths that can be cut from the rod