PSLE At first, Lucy had an equal number of orange and gold beads . She gave away
23 of her orange beads and some gold beads. In the end, she was left with
35 of her beads. What fraction of the gold beads did Lucy give away?
|
Orange |
Gold |
Total |
Comparing orange beads and gold beads at first |
1x3x5 = 15 u |
1x3x5 = 15 u |
2x3x5 = 30 u |
Before |
3x5 = 15 u |
15 u |
5x6 = 30 u |
Change |
- 2x5 = - 10 u |
- 2 u |
- 3x6 = - 12 u |
After |
1x5 = 5 u |
13 u |
2x6 = 18 u |
After
1x5 =
5 u13 u
2x6 =
18 uThe number of orange beads at first is repeated. Make the number of orange 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 5 is 30.
Number of gold beads that Lucy was left with
= 18 u - 5 u
= 13 u
Number of gold beads that Lucy gave away
= 15 u - 13 u
= 2 u
Fraction of the gold beads that Lucy gave away =
215 Answer(s):
215