PSLE At first, Joelle had an equal number of purple and green stickers . She gave away
35 of her purple stickers and some green stickers. In the end, she was left with
23 of her stickers. What fraction of the green stickers did Joelle give away?
|
Purple |
Green |
Total |
Comparing purple stickers and green 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 purple stickers at first is repeated. Make the number of purple 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 green stickers that Joelle was left with
= 20 u - 6 u
= 14 u
Number of green stickers that Joelle gave away
= 15 u - 14 u
= 1 u
Fraction of the green stickers that Joelle gave away =
115 Answer(s):
115