PSLE At first, Abi had an equal number of silver and black stickers . She gave away
25 of her silver stickers and some black stickers. In the end, she was left with
23 of her stickers. What fraction of the black stickers was Abi left with?
|
Silver |
Black |
Total |
Comparing silver stickers and black stickers at first |
1x5x3 = 15 u |
1x5x3 = 15 u |
2x5x3 = 30 u |
Before |
5x3 = 15 u |
15 u |
3x10 = 30 u |
Change |
- 2x3 = - 6 u |
- 4 u |
- 2x10 = - 10 u |
After |
3x3 = 9 u |
11 u |
1x10 = 20 u |
The 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 black stickers that Abi was left with
= 20 u - 9 u
= 11 u
Fraction of the black stickers that Abi was left with =
1115 Answer(s):
1115