PSLE At first, Hazel had an equal number of yellow and green marbles . She gave away
34 of her yellow marbles and some green marbles. In the end, she was left with
14 of her marbles. What fraction of the green marbles did Hazel give away?
|
Yellow |
Green |
Total |
Comparing yellow marbles and green marbles at first |
1x4x1 = 4 u |
1x4x1 = 4 u |
2x4x1 = 8 u |
Before |
4x1 = 4 u |
4 u |
4x2 = 8 u |
Change |
- 3x1 = - 3 u |
- 3 u |
- 1x2 = - 6 u |
After |
1x1 = 1 u |
1 u |
3x2 = 2 u |
After
1x1 =
1 u1 u
3x2 =
2 uThe number of yellow marbles at first is repeated. Make the number of yellow marbles the first the same. LCM of 4 and 1 is 4.
The total number of marbles at first is repeated. Make the total number of marbles at first the same. LCM of 8 and 4 is 8.
Number of green marbles that Hazel was left with
= 2 u - 1 u
= 1 u
Number of green marbles that Hazel gave away
= 4 u - 1 u
= 3 u
Fraction of the green marbles that Hazel gave away =
34 Answer(s):
34