PSLE At first, Tammy had an equal number of red and orange stickers . She gave away
34 of her red stickers and some orange stickers. In the end, she was left with
35 of her stickers. What fraction of the orange stickers did Tammy give away?
|
Red |
Orange |
Total |
Comparing red stickers and orange stickers at first |
1x4x5 = 20 u |
1x4x5 = 20 u |
2x4x5 = 40 u |
Before |
4x5 = 20 u |
20 u |
5x8 = 40 u |
Change |
- 3x5 = - 15 u |
- 1 u |
- 3x8 = - 16 u |
After |
1x5 = 5 u |
19 u |
2x8 = 24 u |
After
1x5 =
5 u19 u
2x8 =
24 uThe number of red stickers at first is repeated. Make the number of red stickers the first the same. LCM of 4 and 1 is 4.
The total number of stickers at first is repeated. Make the total number of stickers at first the same. LCM of 8 and 5 is 40.
Number of orange stickers that Tammy was left with
= 24 u - 5 u
= 19 u
Number of orange stickers that Tammy gave away
= 20 u - 19 u
= 1 u
Fraction of the orange stickers that Tammy gave away =
120 Answer(s):
120