A store owner has 84 more oranges than pomegranates. After he sold 75% of the oranges and 35% of the pomegranates, he is left with 75 less oranges than pomegranates. What fraction of the fruits left were pomegranates?

	Oranges		Pomegranates
Comparing oranges and pomegranates at first	84 more
Before	4x5 = 20 u	+ 84	20x1 = 20 u
Change	- 3x5 = - 15 u	- 63	- 7x1 = - 7 u
After	1x5 = 5 u	+ 21	13x1 = 13 u
Comparing oranges  and pomegranates in the end	75 less

75% = ⁷⁵₁₀₀ = ³₄ 
75% x 84 = ³₄ x 84 = 63
84 - 63 = 21

35% = ³⁵₁₀₀ = ⁷₂₀ 

The number of oranges is 75 less than the number of pomegranates in the end. So, if another 75 oranges are added, the number of oranges and pomegranates in the end will be the same.

5 u + 21 + 75 = 13 u
5 u + 96 = 13 u
13 u - 5 u = 96
8 u = 96

1 u = 96 ÷ 8 = 12

Number of pomegranates left
= 13 u
= 13 x 12
= 156

Total number of fruits left
= 5 u + 21 + 13 u
= 18 u + 21
= 18 x 12 + 21
= 216 + 21
= 237

^{Pomegranates left}_{Total fruits left} = ¹⁵⁶₂₃₇ = ⁵²₇₉

Answer(s): ⁵²₇₉