PSLE
At first, Yoko had an equal number of blue and green stickers . She gave away ²₃ of her blue stickers and some green stickers. In the end, she was left with ²₅ of her stickers. What fraction of the green stickers did Yoko give away?

	Blue	Green	Total
Comparing blue stickers and green stickers at first	1x3x5 = 15 u	1x3x5 =  15 u	2x3x5 =  30 u
Before	3x5 = 15 u	15 u	5x6 = 30 u
Change	- 2x5 = - 10 u	- 8 u	- 2x6 = - 18 u
After	1x5 = 5 u	7 u	3x6 = 12 u

After1_x5 =
5 u
7 u3_x6 =
12 u
The number of blue stickers at first is repeated. Make the number of blue stickers the first the same. LCM of 3 and 1 is 3.

The total number of stickers at first is repeated. Make the total number of stickers at first the same. LCM of 6 and 5 is 30.

Number of green stickers that Yoko was left with
= 12 u - 5 u
= 7 u

Number of green stickers that Yoko gave away
= 15 u - 7 u
= 8 u

Fraction of the green stickers that Yoko gave away = ⁸₁₅

Answer(s): ⁸₁₅