Shannon spent ²₅ of her salary on a vacuum cleaner and ²₅ of the remainder on a juicer. If she saved the remaining $189, how much was her salary?
Fraction of the salary spent on the vacuum cleaner = ²₅

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

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

Vacuum Cleaner	Remainder		Total
2x5	3x5		5x5
	Juicer	Savings
	2x3	3x3
10 u	6 u	9 u	25 u

The remainder and the total amount on the juicer and the savings are the same. Make the remainder and the total amount on the juicer and the savings the same.  LCM of 3 and 5 is 15.

Total salary = 25 u

Amount spent of the vacuum cleaner = 10 u
Amount spent on the juicer = 6 u
Amount of savings = 9 u

9 u = 189

1 u = 189 ÷ 9 = 21

Shannon's salary
= 25 u
= 25 x 21
= $525

Answer(s): $525