PSLE At first, Emily had an equal number of gold and pink beads . She gave away
25 of her gold beads and some pink beads. In the end, she was left with
34 of her beads. What fraction of the pink beads did Emily give away?
|
Gold |
Pink |
Total |
Comparing gold beads and pink beads at first |
1x5x2 = 10 u |
1x5x2 = 10 u |
2x5x2 = 20 u |
Before |
5x2 = 10 u |
10 u |
4x5 = 20 u |
Change |
- 2x2 = - 4 u |
- 1 u |
- 3x5 = - 5 u |
After |
3x2 = 6 u |
9 u |
1x5 = 15 u |
After
3x2 =
6 u9 u
1x5 =
15 uThe number of gold beads at first is repeated. Make the number of gold 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 4 is 20.
Number of pink beads that Emily was left with
= 15 u - 6 u
= 9 u
Number of pink beads that Emily gave away
= 10 u - 9 u
= 1 u
Fraction of the pink beads that Emily gave away =
110 Answer(s):
110