Daniel is 40 years older than his son. 12 years from now, his son will be ¹₂ of his age while his cousin will be ²₅ of his son. Express his cousin’s present age as a fraction of Daniel's present age. Leave your answer in its simplest form.

	Daniel	Daniel's son	Daniel's cousin	Difference between Daniel and Daniel's son
Before	10 u - 12	5 u - 12	2 u - 12	40
Change	+ 12	+ 12	+ 12
After	2x5	1x5
		5x1	2x1
Comparing Daniel, his son and his cousin in the end	10 u	5 u	2 u	5 u

The repeated identity is the age of Daniel's son. LCM of 1 and 5 is 5.

The difference in age between Daniel and Daniel's son remains unchanged.

Difference in age between Daniel and Daniel's son
= 10 u - 5 u 
= 5 u 

5 u = 40

1 u = 40 ÷ 5 = 8

His cousin's present age 
= 2 u - 12
= 2 x 8 - 12
= 16 - 12
= 4

Daniel's present age
= 10 u - 12
= 10 x 8 - 12
= 80 - 12
= 68

His cousin's present age as a fraction of Daniel's present age
= ⁴₆₈
= ¹₁₇

Answer(s): ¹₁₇