Liam and Caden had an equal number of books. Liam donated
19 of her books and Caden donated
13 of his books. Caden donated 14 more books than Liam. How many books did Caden have at first?
| |
Liam |
Caden |
Before
|
9x1 =
9 u |
3x3 =
9 u |
Change
|
- 1x1 =
- 1 u |
- 1x3 =
- 3 u |
After
|
8x1 =
8 u |
2x3 =
6 u |
The number of books that Liam and Caden each had at first is the same. Make the number of books that Liam and Caden had at first the same. LCM of 9 and 3 is 9.
Number of books that Caden donated more than Liam
= 3 u - 1 u
= 2 u
2 u = 14
1 u = 14 ÷ 2 = 7
Number of books that Caden had
= 9 u
= 9 x 7
= 63
Answer(s): 63
