PSLE
At first, Zara had an equal number of green and orange stickers . She gave away ³₅ of her green stickers and some orange stickers. In the end, she was left with ²₅ of her stickers. What fraction of the orange stickers did Zara give away?

	Green	Orange	Total
Comparing green stickers and orange stickers at first	1x5x1 = 5 u	1x5x1 =  5 u	2x5x1 =  10 u
Before	5x1 = 5 u	5 u	5x2 = 10 u
Change	- 3x1 = - 3 u	- 3 u	- 2x2 = - 6 u
After	2x1 = 2 u	2 u	3x2 = 4 u

After2_x1 =
2 u
2 u3_x2 =
4 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 5 is 10.

Number of orange stickers that Zara was left with
= 4 u - 2 u
= 2 u

Number of orange stickers that Zara gave away
= 5 u - 2 u
= 3 u

Fraction of the orange stickers that Zara gave away = ³₅

Answer(s): ³₅