Erika spent ¹₈ of her money on some foolscaps. She spent ²₇ of the remaining money on some correction tapes and ⁴₅ of what was left on some glues.

1. What fraction of her money was left?
2. Given that the glues cost $14 more than the correction tapes, find the sum of money that Erika had at first.

Foolscaps	Remaining money
1	7
	Correction Tapes	Left
	2	5
		Glues	Rest
1 u	2 u	4 u	1 u

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

Fraction of remaining money after spending on the correction tapes
= 1 - ²₇
= ⁵₇

Fraction of what was left after spending on the glues
= 1 - ⁴₅
= ¹₅

Fraction of money that was left = ¹₈

(b)
Amount that Erika spent on the correction tapes = 2 u
Amount that Erika spent on the glues = 4 u

Amount that the glues cost more than the correction tapes
= 4 u - 2 u
= 2 u

2 u = 14

1 u = 14 ÷ 2 = 7

Amount that Erika had at first
= 8 u
= 8 x 7
= $56

Answer(s): (a) ¹₈; (b) $56