PSLE At first, Rachel had an equal number of blue and pink stickers . She gave away
45 of her blue stickers and some pink stickers. In the end, she was left with
14 of her stickers. What fraction of the pink stickers was Rachel left with?
|
Blue |
Pink |
Total |
Comparing blue stickers and pink stickers at first |
1x5x2 = 10 u |
1x5x2 = 10 u |
2x5x2 = 20 u |
Before |
5x2 = 10 u |
10 u |
4x5 = 20 u |
Change |
- 4x2 = - 8 u |
- 7 u |
- 1x5 = - 15 u |
After |
1x2 = 2 u |
3 u |
3x5 = 5 u |
The number of blue stickers at first is repeated. Make the number of blue 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 4 is 20.
Number of pink stickers that Rachel was left with
= 5 u - 2 u
= 3 u
Fraction of the pink stickers that Rachel was left with =
310 Answer(s):
310