Tiffany and Kathy bought a present for their best friend. They shared the cost equally between them. Tiffany used
310 of her savings while Kathy used
16 of her savings. What fraction of their total savings was used to buy the present?
Each girl shared half the cost of the present. The amount that each of them spent is the same.
Make the numerators the same. LCM of 3 and 1 is 3.
310 of Tiffany's savings =
16 of Kathy's savings
310 of Tiffany's savings =
318 of Kathy's savings
| |
Tiffany |
Kathy |
Total |
| Before |
10 u |
18 u |
28 u |
| Change |
- 3 u |
- 3 u |
- 6 u |
| After |
7 u |
15 u |
22 u |
Amount of savings spent
= 3 u + 3 u
= 6 u
Total amount of savings at first
= 10 u + 18 u
= 28 u
Fraction of their total savings used
=
628=
314 Answer(s):
314 
