Answer:
83/8 yarns of red
Step-by-step explanation:
Given data
W are told that Suzzanah needs a total of 11 3⁄4 yards of yarn.
= 47/4 yards
Amount of blue needed
convert to simple fraction
1 3/8= 11/8 yards
Amount of Red needed
convert to simple fraction
4 1/2 = 9/2 yards
let us compute the number of yarns left out of the total
=47/4- (11/8+9/2)
=47/4- (11+36/8)
=47/4- 47/8
=94-47/8
=47/8 is the remaining yarn,
Hence the amount of red needed is
=47/8+9/2
=47+36/8
=83/8 yarns of red