PSLE At first, Julie had an equal number of orange and yellow marbles . She gave away
25 of her orange marbles and some yellow marbles. In the end, she was left with
35 of her marbles. What fraction of the yellow marbles was Julie left with?
|
Orange |
Yellow |
Total |
Comparing orange marbles and yellow marbles at first |
1x5x1 = 5 u |
1x5x1 = 5 u |
2x5x1 = 10 u |
Before |
5x1 = 5 u |
5 u |
5x2 = 10 u |
Change |
- 2x1 = - 2 u |
- 2 u |
- 3x2 = - 4 u |
After |
3x1 = 3 u |
3 u |
2x2 = 6 u |
The number of orange marbles at first is repeated. Make the number of orange marbles the first the same. LCM of 5 and 1 is 5.
The total number of marbles at first is repeated. Make the total number of marbles at first the same. LCM of 10 and 5 is 10.
Number of yellow marbles that Julie was left with
= 6 u - 3 u
= 3 u
Fraction of the yellow marbles that Julie was left with =
35 Answer(s):
35