PSLE At first, Joelle had an equal number of silver and pink stickers . She gave away
35 of her silver stickers and some pink stickers. In the end, she was left with
23 of her stickers. What fraction of the pink stickers did Joelle give away?
|
Silver |
Pink |
Total |
Comparing silver stickers and pink stickers at first |
1x5x3 = 15 u |
1x5x3 = 15 u |
2x5x3 = 30 u |
Before |
5x3 = 15 u |
15 u |
3x10 = 30 u |
Change |
- 3x3 = - 9 u |
- 1 u |
- 2x10 = - 10 u |
After |
2x3 = 6 u |
14 u |
1x10 = 20 u |
After
2x3 =
6 u14 u
1x10 =
20 uThe number of silver stickers at first is repeated. Make the number of silver 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 3 is 30.
Number of pink stickers that Joelle was left with
= 20 u - 6 u
= 14 u
Number of pink stickers that Joelle gave away
= 15 u - 14 u
= 1 u
Fraction of the pink stickers that Joelle gave away =
115 Answer(s):
115