PSLE At first, Jean had an equal number of gold and silver beads . She gave away
23 of her gold beads and some silver beads. In the end, she was left with
35 of her beads. What fraction of the silver beads did Jean give away?
|
Gold |
Silver |
Total |
Comparing gold beads and silver 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 gold beads at first is repeated. Make the number of gold 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 silver beads that Jean was left with
= 18 u - 5 u
= 13 u
Number of silver beads that Jean gave away
= 15 u - 13 u
= 2 u
Fraction of the silver beads that Jean gave away =
215 Answer(s):
215