David spent $117 on a vest. He spent
19 of his remaining money on a skirt. If he still had
49 of his money left, how much did he have at first?
| Vest |
Remaining amount |
| |
Skirt |
Left |
| $117 |
1 |
8 |
| 5x2 |
4x2 |
| 9 u |
1 u |
8 u |
The amount that David had left is the same. Make the numerators the same. LCM of 4 and 8 is 8.
4x29x2 of his money =
89 of his remaining money
818 of his money =
89 of his remaining money
Amount that David spent on the vest = 9 u
9 u = 117
1 u = 117 ÷ 9 = 13
Amount that David had at first
= 18 u
= 18 x 13
= $234
Answer(s): $234
