PSLE At first, Abi had an equal number of black and purple stickers . She gave away
23 of her black stickers and some purple stickers. In the end, she was left with
35 of her stickers. What fraction of the purple stickers did Abi give away?
|
Black |
Purple |
Total |
Comparing black stickers and purple stickers at first |
1x3x5 = 15 u |
1x3x5 = 15 u |
2x3x5 = 30 u |
Before |
3x5 = 15 u |
15 u |
5x6 = 30 u |
Change |
- 2x5 = - 10 u |
- 2 u |
- 3x6 = - 12 u |
After |
1x5 = 5 u |
13 u |
2x6 = 18 u |
After
1x5 =
5 u13 u
2x6 =
18 uThe number of black stickers at first is repeated. Make the number of black stickers the first the same. LCM of 3 and 1 is 3.
The total number of stickers at first is repeated. Make the total number of stickers at first the same. LCM of 6 and 5 is 30.
Number of purple stickers that Abi was left with
= 18 u - 5 u
= 13 u
Number of purple stickers that Abi gave away
= 15 u - 13 u
= 2 u
Fraction of the purple stickers that Abi gave away =
215 Answer(s):
215