Dana spent ²₅ of her salary on a television set and ³₄ of the remainder on a speaker. If she saved the remaining $111, how much was her salary?
Fraction of the salary spent on the television set = ²₅

Fraction of the salary on the remainder
= 1 - ²₅
= ³₅

Fraction of the remainder on savings
= 1 - ³₄
= ¹₄

Television Set	Remainder		Total
2x4	3x4		5x4
	Speaker	Savings
	3x3	1x3
8 u	9 u	3 u	20 u

The remainder and the total amount on the speaker and the savings are the same. Make the remainder and the total amount on the speaker and the savings the same.  LCM of 3 and 4 is 12.

Total salary = 20 u

Amount spent of the television set = 8 u
Amount spent on the speaker = 9 u
Amount of savings = 3 u

3 u = 111

1 u = 111 ÷ 3 = 37

Dana's salary
= 20 u
= 20 x 37
= $740

Answer(s): $740