PSLE At first, Gwen had an equal number of silver and purple stickers . She gave away
45 of her silver stickers and some purple stickers. In the end, she was left with
25 of her stickers. What fraction of the purple stickers was Gwen left with?
|
Silver |
Purple |
Total |
Comparing silver stickers and purple stickers at first |
1x5x1 = 5 u |
1x5x1 = 5 u |
2x5x1 = 10 u |
Before |
5x1 = 5 u |
5 u |
5x2 = 10 u |
Change |
- 4x1 = - 4 u |
- 2 u |
- 2x2 = - 6 u |
After |
1x1 = 1 u |
3 u |
3x2 = 4 u |
The 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 5 is 10.
Number of purple stickers that Gwen was left with
= 4 u - 1 u
= 3 u
Fraction of the purple stickers that Gwen was left with =
35 Answer(s):
35