A store owner has 84 more passion fruits than chikoos. After he sold 75% of the passion fruits and 35% of the chikoos, he is left with 51 more chikoos than passion fruits. What fraction of the fruits left were chikoos?

	Passion fruits		Chikoos
Comparing passion fruits and chikoos 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 passion fruits  and chikoos in the end			51 more

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

35% = ³⁵₁₀₀ = ⁷₂₀ 

The number of chikoos is 51 more than the number of passion fruits in the end. So, if another 51 passion fruits are added, the number of passion fruits and chikoos in the end will be the same.

5 u + 21 + 51 = 13 u
5 u + 72 = 13 u
13 u - 5 u = 72
8 u = 72

1 u = 72 ÷ 8 = 9

Number of chikoos left
= 13 u
= 13 x 9
= 117

Total number of fruits left
= 5 u + 21 + 13 u
= 18 u + 21
= 18 x 9 + 21
= 162 + 21
= 183

^{Chikoos left}_{Total fruits left} = ¹¹⁷₁₈₃ = ³⁹₆₁

Answer(s): ³⁹₆₁