Risa spent ¹₈ of her salary on a television set and ³₄ of the remainder on a speaker. If she saved the remaining $259, how much was her salary?
Fraction of the salary spent on the television set = ¹₈

Fraction of the salary on the remainder
= 1 - ¹₈
= ⁷₈

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

Television Set	Remainder		Total
1x4	7x4		8x4
	Speaker	Savings
	3x7	1x7
4 u	21 u	7 u	32 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 7 and 4 is 28.

Total salary = 32 u

Amount spent of the television set = 4 u
Amount spent on the speaker = 21 u
Amount of savings = 7 u

7 u = 259

1 u = 259 ÷ 7 = 37

Risa's salary
= 32 u
= 32 x 37
= $1184

Answer(s): $1184