Emma and Sam had the same amount of savings at first. Then Emma spent
14 of her savings and Sam spent
23 of his savings. If Emma spent $720 less than Sam, how much did each of them have at first?
| |
Emma |
Sam |
| Before |
4x3 =
12 u |
3x4 =
12 u |
| Change |
1x3 =
- 3 u |
2x4 =
- 8 u |
| After |
9 u |
4 u |
The amount that Emma and Sam had at first is the same. Make the amount that Emma and Sam each had the same. LCM of 4 and 3 is 12.
Amount that Emma spent less than Sam
= 8 u - 3 u
= 5 u
5 u = 720
1 u = 720 ÷ 5 = 144
Amount that each of them had at first
= 12 u
= 12 x 144
= $1728
Answer(s): $1728
