PSLE At first, Kathy had an equal number of red and pink beads . She gave away
35 of her red beads and some pink beads. In the end, she was left with
23 of her beads. What fraction of the pink beads was Kathy left with?
|
Red |
Pink |
Total |
Comparing red beads and pink beads at first |
1x5x3 = 15 u |
1x5x3 = 15 u |
2x5x3 = 30 u |
Before |
5x3 = 15 u |
15 u |
3x10 = 30 u |
Change |
- 3x3 = - 9 u |
- 1 u |
- 2x10 = - 10 u |
After |
2x3 = 6 u |
14 u |
1x10 = 20 u |
The number of red beads at first is repeated. Make the number of red beads the first the same. LCM of 5 and 1 is 5.
The total number of beads at first is repeated. Make the total number of beads at first the same. LCM of 10 and 3 is 30.
Number of pink beads that Kathy was left with
= 20 u - 6 u
= 14 u
Fraction of the pink beads that Kathy was left with =
1415 Answer(s):
1415