PSLE At first, Wendy had an equal number of silver and orange stickers . She gave away
45 of her silver stickers and some orange stickers. In the end, she was left with
14 of her stickers. What fraction of the orange stickers did Wendy give away?
|
Silver |
Orange |
Total |
Comparing silver stickers and orange stickers at first |
1x5x2 = 10 u |
1x5x2 = 10 u |
2x5x2 = 20 u |
Before |
5x2 = 10 u |
10 u |
4x5 = 20 u |
Change |
- 4x2 = - 8 u |
- 7 u |
- 1x5 = - 15 u |
After |
1x2 = 2 u |
3 u |
3x5 = 5 u |
After
1x2 =
2 u3 u
3x5 =
5 uThe number of silver stickers at first is repeated. Make the number of silver stickers the first the same. LCM of 5 and 1 is 5.
The total number of stickers at first is repeated. Make the total number of stickers at first the same. LCM of 10 and 4 is 20.
Number of orange stickers that Wendy was left with
= 5 u - 2 u
= 3 u
Number of orange stickers that Wendy gave away
= 10 u - 3 u
= 7 u
Fraction of the orange stickers that Wendy gave away =
710 Answer(s):
710