Irene and Andy went shopping with a total of $133. After Irene spent
47 of her money and Andy spent
34 of his money, they each had an equal amount of money left. How much money did they spend altogether?
| |
Irene |
Andy |
Total |
Before |
7 u |
4x3 =
12 u |
$133 |
Change |
- 4 u |
- 3x3 =
- 9 u |
|
After |
3 u |
1x3 =
3 u |
|
The amount that Irene and Andy 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 Irene and Andy had at first
= 7 u + 12 u
= 19 u
19 u = 133
1 u = 133 ÷ 19 = 7
Total amount that Irene and Andy spent
= 4 u + 9 u
= 13 u
= 13 x 7
= $91
Answer(s): $91
