Risa and Ian went shopping with a total of $207. After Risa spent
25 of her money and Ian spent
56 of his money, they each had an equal amount of money left. How much money did they spend altogether?
| |
Risa |
Ian |
Total |
Before |
5 u |
6x3 =
18 u |
$207 |
Change |
- 2 u |
- 5x3 =
- 15 u |
|
After |
3 u |
1x3 =
3 u |
|
The amount that Risa and Ian each had in the end is the same. Make the amount that each had in the end the same. LCM of 3 and 1 is 3.
Total amount that Risa and Ian had at first
= 5 u + 18 u
= 23 u
23 u = 207
1 u = 207 ÷ 23 = 9
Total amount that Risa and Ian spent
= 2 u + 15 u
= 17 u
= 17 x 9
= $153
Answer(s): $153
