PSLE At first, Irene had an equal number of purple and pink beads . She gave away
23 of her purple beads and some pink beads. In the end, she was left with
14 of her beads. What fraction of the pink beads did Irene give away?
|
Purple |
Pink |
Total |
Comparing purple 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 purple beads at first is repeated. Make the number of purple 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 Irene was left with
= 3 u - 2 u
= 1 u
Number of pink beads that Irene gave away
= 6 u - 1 u
= 5 u
Fraction of the pink beads that Irene gave away =
56 Answer(s):
56