PSLE
At first, Natalie had an equal number of blue and gold stickers . She gave away ³₄ of her blue stickers and some gold stickers. In the end, she was left with ³₅ of her stickers. What fraction of the gold stickers did Natalie give away?

	Blue	Gold	Total
Comparing blue stickers and gold stickers at first	1x4x5 = 20 u	1x4x5 =  20 u	2x4x5 =  40 u
Before	4x5 = 20 u	20 u	5x8 = 40 u
Change	- 3x5 = - 15 u	- 1 u	- 3x8 = - 16 u
After	1x5 = 5 u	19 u	2x8 = 24 u

After1_x5 =
5 u
19 u2_x8 =
24 u
The number of blue stickers at first is repeated. Make the number of blue stickers the first the same. LCM of 4 and 1 is 4.

The total number of stickers at first is repeated. Make the total number of stickers at first the same. LCM of 8 and 5 is 40.

Number of gold stickers that Natalie was left with
= 24 u - 5 u
= 19 u

Number of gold stickers that Natalie gave away
= 20 u - 19 u
= 1 u

Fraction of the gold stickers that Natalie gave away = ¹₂₀

Answer(s): ¹₂₀