PSLE At first, Sabrina had an equal number of green and orange marbles . She gave away
35 of her green marbles and some orange marbles. In the end, she was left with
14 of her marbles. What fraction of the orange marbles was Sabrina left with?
|
Green |
Orange |
Total |
Comparing green marbles and orange marbles 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 |
The number of green marbles at first is repeated. Make the number of green 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 4 is 20.
Number of orange marbles that Sabrina was left with
= 5 u - 4 u
= 1 u
Fraction of the orange marbles that Sabrina was left with =
110 Answer(s):
110