PSLE At first, Xuan had an equal number of yellow and black stickers . She gave away
23 of her yellow stickers and some black stickers. In the end, she was left with
14 of her stickers. What fraction of the black stickers was Xuan left with?
|
Yellow |
Black |
Total |
Comparing yellow stickers and black stickers at first |
1x3x2 = 6 u |
1x3x2 = 6 u |
2x3x2 = 12 u |
Before |
3x2 = 6 u |
6 u |
4x3 = 12 u |
Change |
- 2x2 = - 4 u |
- 5 u |
- 1x3 = - 9 u |
After |
1x2 = 2 u |
1 u |
3x3 = 3 u |
The number of yellow stickers at first is repeated. Make the number of yellow 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 4 is 12.
Number of black stickers that Xuan was left with
= 3 u - 2 u
= 1 u
Fraction of the black stickers that Xuan was left with =
16 Answer(s):
16