PSLE At first, Joelle had an equal number of blue and pink beads . She gave away
23 of her blue beads and some pink beads. In the end, she was left with
14 of her beads. What fraction of the pink beads did Joelle give away?
|
Blue |
Pink |
Total |
Comparing blue beads and pink beads 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 |
After
1x2 =
2 u1 u
3x3 =
3 uThe number of blue beads at first is repeated. Make the number of blue beads the first the same. LCM of 3 and 1 is 3.
The total number of beads at first is repeated. Make the total number of beads at first the same. LCM of 6 and 4 is 12.
Number of pink beads that Joelle was left with
= 3 u - 2 u
= 1 u
Number of pink beads that Joelle gave away
= 6 u - 1 u
= 5 u
Fraction of the pink beads that Joelle gave away =
56 Answer(s):
56