beth has a box of shirts.one half of the shirts are small,2/5 of the shirts are meduim,and 5 shirts are large.how many shirts are in the box?

Answer 1

Fraction of large shirts
= 1 - 1/2 - 2/5
= (10-5-4)/10
= 1/10
Proportions:
1/10 : 5
1 : x

Cross multiply to get
Number of large shirts, x
= 1*5/(1/10)
= 50

Answer 2

Cross multiply to get
Total number of shirts, x
= 1*5/(1/10)
= 50

Answer 3

Lisa. Has 8 shirts. One-fourth are dress shirts. One-half are school shirts. How many are dress shirts? How many shirts are school shirts?