PSLE At first, Abi had an equal number of purple and pink beads . She gave away
45 of her purple beads and some pink beads. In the end, she was left with
25 of her beads. What fraction of the pink beads was Abi left with?
|
Purple |
Pink |
Total |
Comparing purple beads and pink beads at first |
1x5x1 = 5 u |
1x5x1 = 5 u |
2x5x1 = 10 u |
Before |
5x1 = 5 u |
5 u |
5x2 = 10 u |
Change |
- 4x1 = - 4 u |
- 2 u |
- 2x2 = - 6 u |
After |
1x1 = 1 u |
3 u |
3x2 = 4 u |
The number of purple beads at first is repeated. Make the number of purple 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 5 is 10.
Number of pink beads that Abi was left with
= 4 u - 1 u
= 3 u
Fraction of the pink beads that Abi was left with =
35 Answer(s):
35