Min spent ¹₈ of her salary on a vacuum cleaner and ²₅ of the remainder on a stand mixer. If she saved the remaining $588, how much was her salary?
Fraction of the salary spent on the vacuum cleaner = ¹₈

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

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

Vacuum Cleaner	Remainder		Total
1x5	7x5		8x5
	Stand Mixer	Savings
	2x7	3x7
5 u	14 u	21 u	40 u

The remainder and the total amount on the stand mixer and the savings are the same. Make the remainder and the total amount on the stand mixer and the savings the same.  LCM of 7 and 5 is 35.

Total salary = 40 u

Amount spent of the vacuum cleaner = 5 u
Amount spent on the stand mixer = 14 u
Amount of savings = 21 u

21 u = 588

1 u = 588 ÷ 21 = 28

Min's salary
= 40 u
= 40 x 28
= $1120

Answer(s): $1120