1. 3
7
2
5
3
8
2
9
1
4

2. 3
8
1
4+ = n

4. 3
8
1
4+ = n
8 4
4 2
2
2
2 1

5. 2
8
3
8
1
4+ = n
1
4

6. 2
8
1
4
1
4
2
8
8
1
4
=
8 is the LCD, so 8 will be the
denominator to get the
numerator, 8÷4 = 2, then
2 x 1 = 2
2

7. 3
8
1
4+ = n
2
8
1
4 = 3
8
2
8
+ = n
3
8
2
8
+ =
5
8

8. 3 10
2
15
1
6+ = n
15 6

9. 3
10
2
5+ = n
2
7
5
14+ = n
8
21
3
7+ = n