Sarah spent ¹₄ of her salary on a toaster oven and ²₅ of the remainder on a refrigerator. If she saved the remaining $198, how much was her salary?
Fraction of the salary spent on the toaster oven = ¹₄

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

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

Toaster Oven	Remainder		Total
1x5	3x5		4x5
	Refrigerator	Savings
	2x3	3x3
5 u	6 u	9 u	20 u

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

Total salary = 20 u

Amount spent of the toaster oven = 5 u
Amount spent on the refrigerator = 6 u
Amount of savings = 9 u

9 u = 198

1 u = 198 ÷ 9 = 22

Sarah's salary
= 20 u
= 20 x 22
= $440

Answer(s): $440