Tammy spent ¹₇ of her money on some folders. She spent ¹₆ of the remaining money on some highlighters and ⁴₅ 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 folders cost $30 less than the post-it pads, find the sum of money that Tammy spent.

Folders	Remaining money
1	6
	Highlighters	Left
	1	5
		Post-it Pads	Rest
1 u	1 u	4 u	1 u

(a)
Fraction of money left after spending on the folders
= 1 - ¹₇
= ⁶₇

Fraction of remaining money after spending on the highlighters
= 1 - ¹₆
= ⁵₆

Fraction of what was left after spending on the post-it pads
= 1 - ⁴₅
= ¹₅

Fraction of money that was spent on post-it pads = ⁴₇

(b)
Amount that Tammy spent on the folders = 1 u
Amount that Tammy spent on the post-it pads = 4 u

Amount that the folders cost less than the post-it pads
= 4 u - 1 u
= 3 u

3 u = 30

1 u = 30 ÷ 3 = 10

Amount that Tammy sent
= 1 u + 1 u + 4 u
= 6 u
= 6 x 10
= $60

Answer(s): (a) ⁴₇; (b) $60