PSLE At first, Yoko had an equal number of gold and orange stickers . She gave away
23 of her gold stickers and some orange stickers. In the end, she was left with
25 of her stickers. What fraction of the orange stickers did Yoko give away?
|
Gold |
Orange |
Total |
Comparing gold stickers and orange stickers at first |
1x3x5 = 15 u |
1x3x5 = 15 u |
2x3x5 = 30 u |
Before |
3x5 = 15 u |
15 u |
5x6 = 30 u |
Change |
- 2x5 = - 10 u |
- 8 u |
- 2x6 = - 18 u |
After |
1x5 = 5 u |
7 u |
3x6 = 12 u |
After
1x5 =
5 u7 u
3x6 =
12 uThe number of gold stickers at first is repeated. Make the number of gold stickers the first the same. LCM of 3 and 1 is 3.
The total number of stickers at first is repeated. Make the total number of stickers at first the same. LCM of 6 and 5 is 30.
Number of orange stickers that Yoko was left with
= 12 u - 5 u
= 7 u
Number of orange stickers that Yoko gave away
= 15 u - 7 u
= 8 u
Fraction of the orange stickers that Yoko gave away =
815 Answer(s):
815