Helen spent $28 on a blouse. She spent ²₁₁ of her remaining money on a skirt and a windbreaker, after which half her money was left.

1. What fraction of her money did she spend on the blouse?
2. The cost of the windbreaker is ¹₃ the cost of the skirt. How much more does the skirt cost than the windbreaker?

Blouse	Remaining amount
	Skirt	Windbreaker	Left
$28	2		9
1x9			1x9
7 u	2 u		9 u

(a)
The amount of money left is repeated. Make the numerators the same LCM of 1 and 9 is 9. 

1x92x9 of total money = 911 of remaining amount
918 of total money = 911 of remaining amount

Fraction of her money that she spent on the blouse
= ^Blouse_Total 
= ⁷₁₈ 

(b)
Cost of the blouse = 7 u

7 u = 28

1 u = 28 ÷ 7 = 4

Cost of the skirt and the windbreaker
= 2 u
= 2 x 4
= $8

Cost of the windbreaker = 1 p
Cost of the skirt = 3 p

Total cost of the windbreaker and the skirt 
= 1 p + 3 p
= 4 p

4 p = 8

1 p = 8 ÷ 4 = 2

Amount that the skirt was more than the windbreaker
= 3 p - 1 p
= 2 p
= 2 x 2
= $4

Answer(s): (a) ⁷₁₈; (b) $4