Nora spent ¹₈ of her salary on a blender and ³₄ of the remainder on a refrigerator. If she saved the remaining $175, how much was her salary?
Fraction of the salary spent on the blender = ¹₈

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

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

Blender	Remainder		Total
1x4	7x4		8x4
	Refrigerator	Savings
	3x7	1x7
4 u	21 u	7 u	32 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 7 and 4 is 28.

Total salary = 32 u

Amount spent of the blender = 4 u
Amount spent on the refrigerator = 21 u
Amount of savings = 7 u

7 u = 175

1 u = 175 ÷ 7 = 25

Nora's salary
= 32 u
= 32 x 25
= $800

Answer(s): $800