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