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