PSLE At first, Emma had an equal number of blue and yellow stickers . She gave away
23 of her blue stickers and some yellow stickers. In the end, she was left with
35 of her stickers. What fraction of the yellow stickers did Emma give away?
|
Blue |
Yellow |
Total |
Comparing blue stickers and yellow 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 |
- 2 u |
- 3x6 = - 12 u |
After |
1x5 = 5 u |
13 u |
2x6 = 18 u |
After
1x5 =
5 u13 u
2x6 =
18 uThe number of blue stickers at first is repeated. Make the number of blue 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 yellow stickers that Emma was left with
= 18 u - 5 u
= 13 u
Number of yellow stickers that Emma gave away
= 15 u - 13 u
= 2 u
Fraction of the yellow stickers that Emma gave away =
215 Answer(s):
215