PSLE At first, Raeann had an equal number of pink and purple beads . She gave away
35 of her pink beads and some purple beads. In the end, she was left with
23 of her beads. What fraction of the purple beads did Raeann give away?
|
Pink |
Purple |
Total |
Comparing pink beads and purple 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 |
After
2x3 =
6 u14 u
1x10 =
20 uThe number of pink beads at first is repeated. Make the number of pink 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 purple beads that Raeann was left with
= 20 u - 6 u
= 14 u
Number of purple beads that Raeann gave away
= 15 u - 14 u
= 1 u
Fraction of the purple beads that Raeann gave away =
115 Answer(s):
115