PSLE At first, Zoe had an equal number of pink and orange beads . She gave away
35 of her pink beads and some orange beads. In the end, she was left with
23 of her beads. What fraction of the orange beads did Zoe give away?
|
Pink |
Orange |
Total |
Comparing pink beads and orange 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 orange beads that Zoe was left with
= 20 u - 6 u
= 14 u
Number of orange beads that Zoe gave away
= 15 u - 14 u
= 1 u
Fraction of the orange beads that Zoe gave away =
115 Answer(s):
115