PSLE
At first, Joelle had an equal number of green and blue stickers . She gave away ²₅ of her green stickers and some blue stickers. In the end, she was left with ³₄ of her stickers. What fraction of the blue stickers did Joelle give away?

	Green	Blue	Total
Comparing green stickers and blue stickers at first	1x5x2 = 10 u	1x5x2 =  10 u	2x5x2 =  20 u
Before	5x2 = 10 u	10 u	4x5 = 20 u
Change	- 2x2 = - 4 u	- 1 u	- 3x5 = - 5 u
After	3x2 = 6 u	9 u	1x5 = 15 u

After3_x2 =
6 u
9 u1_x5 =
15 u
The number of green stickers at first is repeated. Make the number of green stickers the first the same. LCM of 5 and 1 is 5.

The total number of stickers at first is repeated. Make the total number of stickers at first the same. LCM of 10 and 4 is 20.

Number of blue stickers that Joelle was left with
= 15 u - 6 u
= 9 u

Number of blue stickers that Joelle gave away
= 10 u - 9 u
= 1 u

Fraction of the blue stickers that Joelle gave away = ¹₁₀

Answer(s): ¹₁₀