PSLE At first, Dana had an equal number of pink and yellow beads . She gave away
45 of her pink beads and some yellow beads. In the end, she was left with
14 of her beads. What fraction of the yellow beads was Dana left with?
|
Pink |
Yellow |
Total |
Comparing pink beads and yellow beads at first |
1x5x2 = 10 u |
1x5x2 = 10 u |
2x5x2 = 20 u |
Before |
5x2 = 10 u |
10 u |
4x5 = 20 u |
Change |
- 4x2 = - 8 u |
- 7 u |
- 1x5 = - 15 u |
After |
1x2 = 2 u |
3 u |
3x5 = 5 u |
The number of pink beads at first is repeated. Make the number of pink beads the first the same. LCM of 5 and 1 is 5.
The total number of beads at first is repeated. Make the total number of beads at first the same. LCM of 10 and 4 is 20.
Number of yellow beads that Dana was left with
= 5 u - 2 u
= 3 u
Fraction of the yellow beads that Dana was left with =
310 Answer(s):
310