Gillian and Opal bought a gift for their nephew. They shared the cost equally between them. Gillian used
512 of her savings while Opal used
12 of her savings. What fraction of their total savings was used to buy the gift?
Each girl shared half the cost of the gift. The amount that each of them spent is the same.
Make the numerators the same. LCM of 5 and 1 is 5.
512 of Gillian's savings =
12 of Opal's savings
512 of Gillian's savings =
510 of Opal's savings
| |
Gillian |
Opal |
Total |
| Before |
12 u |
10 u |
22 u |
| Change |
- 5 u |
- 5 u |
- 10 u |
| After |
7 u |
5 u |
12 u |
Amount of savings spent
= 5 u + 5 u
= 10 u
Total amount of savings at first
= 12 u + 10 u
= 22 u
Fraction of their total savings used
=
1022=
511 Answer(s):
511 
