Jaslyn spent ¹₈ of her money on some foolscaps. She spent ³₇ of the remaining money on some staplers and ³₄ of what was left on some post-it pads.

1. What fraction of her money was spent on post-it pads?
2. Given that the foolscaps cost $12 less than the post-it pads, find the sum of money that Jaslyn spent.

Foolscaps	Remaining money
1	7
	Staplers	Left
	3	4
		Post-it Pads	Rest
1 u	3 u	3 u	1 u

(a)
Fraction of money left after spending on the foolscaps
= 1 - ¹₈
= ⁷₈

Fraction of remaining money after spending on the staplers
= 1 - ³₇
= ⁴₇

Fraction of what was left after spending on the post-it pads
= 1 - ³₄
= ¹₄

Fraction of money that was spent on post-it pads = ³₈

(b)
Amount that Jaslyn spent on the foolscaps = 1 u
Amount that Jaslyn spent on the post-it pads = 3 u

Amount that the foolscaps cost less than the post-it pads
= 3 u - 1 u
= 2 u

2 u = 12

1 u = 12 ÷ 2 = 6

Amount that Jaslyn sent
= 1 u + 3 u + 3 u
= 7 u
= 7 x 6
= $42

Answer(s): (a) ³₈; (b) $42