PSLE At first, Abi had an equal number of red and gold stickers . She gave away
35 of her red stickers and some gold stickers. In the end, she was left with
14 of her stickers. What fraction of the gold stickers did Abi give away?
|
Red |
Gold |
Total |
Comparing red stickers and gold stickers at first |
1x5x2 = 10 u |
1x5x2 = 10 u |
2x5x2 = 20 u |
Before |
5x2 = 10 u |
10 u |
4x5 = 20 u |
Change |
- 3x2 = - 6 u |
- 9 u |
- 1x5 = - 15 u |
After |
2x2 = 4 u |
1 u |
3x5 = 5 u |
After
2x2 =
4 u1 u
3x5 =
5 uThe number of red stickers at first is repeated. Make the number of red 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 gold stickers that Abi was left with
= 5 u - 4 u
= 1 u
Number of gold stickers that Abi gave away
= 10 u - 1 u
= 9 u
Fraction of the gold stickers that Abi gave away =
910 Answer(s):
910