A store owner has 84 more pomegranates than starfruits. After he sold 75% of the pomegranates and 20% of the starfruits, he is left with 111 less pomegranates than starfruits. What fraction of the fruits left were starfruits?

	Pomegranates		Starfruits
Comparing pomegranates and starfruits at first	84 more
Before	4x5 = 20 u	+ 84	5x4 = 20 u
Change	- 3x5 = - 15 u	- 63	- 1x4 = - 4 u
After	1x5 = 5 u	+ 21	4x4 = 16 u
Comparing pomegranates  and starfruits in the end	111 less

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

20% = ²⁰₁₀₀ = ¹₅ 

The number of pomegranates is 111 less than the number of starfruits in the end. So, if another 111 pomegranates are added, the number of pomegranates and starfruits in the end will be the same.

5 u + 21 + 111 = 16 u
5 u + 132 = 16 u
16 u - 5 u = 132
11 u = 132

1 u = 132 ÷ 11 = 12

Number of starfruits left
= 16 u
= 16 x 12
= 192

Total number of fruits left
= 5 u + 21 + 16 u
= 21 u + 21
= 21 x 12 + 21
= 252 + 21
= 273

^{Starfruits left}_{Total fruits left} = ¹⁹²₂₇₃ = ⁶⁴₉₁

Answer(s): ⁶⁴₉₁