Victoria spent ¹₈ of her salary on a refrigerator and ³₅ of the remainder on a kettle. If she saved the remaining $560, how much was her salary?
Fraction of the salary spent on the refrigerator = ¹₈

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

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

Refrigerator	Remainder		Total
1x5	7x5		8x5
	Kettle	Savings
	3x7	2x7
5 u	21 u	14 u	40 u

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

Total salary = 40 u

Amount spent of the refrigerator = 5 u
Amount spent on the kettle = 21 u
Amount of savings = 14 u

14 u = 560

1 u = 560 ÷ 14 = 40

Victoria's salary
= 40 u
= 40 x 40
= $1600

Answer(s): $1600