PSLE At first, Emma had an equal number of green and pink stickers . She gave away
25 of her green stickers and some pink stickers. In the end, she was left with
34 of her stickers. What fraction of the pink stickers did Emma give away?
|
Green |
Pink |
Total |
Comparing green stickers and pink 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 |
After
3x2 =
6 u9 u
1x5 =
15 uThe 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 pink stickers that Emma was left with
= 15 u - 6 u
= 9 u
Number of pink stickers that Emma gave away
= 10 u - 9 u
= 1 u
Fraction of the pink stickers that Emma gave away =
110 Answer(s):
110