Fiona spent ¹₇ of her salary on a food processor and ³₅ of the remainder on a blender. If she saved the remaining $420, how much was her salary?
Fraction of the salary spent on the food processor = ¹₇

Fraction of the salary on the remainder
= 1 - ¹₇
= ⁶₇

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

Food Processor	Remainder		Total
1x5	6x5		7x5
	Blender	Savings
	3x6	2x6
5 u	18 u	12 u	35 u

The remainder and the total amount on the blender and the savings are the same. Make the remainder and the total amount on the blender and the savings the same.  LCM of 6 and 5 is 30.

Total salary = 35 u

Amount spent of the food processor = 5 u
Amount spent on the blender = 18 u
Amount of savings = 12 u

12 u = 420

1 u = 420 ÷ 12 = 35

Fiona's salary
= 35 u
= 35 x 35
= $1225

Answer(s): $1225