+, - Common Denominators
(-11/13) + 8/13 =
-3/13
7/8 - 1/4 =
5/8
3/8 - (2_1/8) =
-1_3/4
(-5/12) x 9/10 =
-3/8
| -8 |
8
1/12 + 5/12 =
6/12 = 1/2
3/7 + 9/14 =
15/14 = 1 1/14
(3_1/7) - (1_5/7) =
1_3/7
5/12 x 15 =
25/4
|12-6|
6
3/10 - 7/10 =
-4/10 = -2/5
(-3/8) - (-9/20) =
3/40
(7_4/5) + (5_3/7) =
13_8/35
(6/7) divided by (2) =
3/7
|5-8|
3
(-4/15) - 1/15 =
-5/15 = -1/3
(-7/12) + (4/15) =
-19/60
(-7_3/11) - (-8) =
8/11
(7_1/3) divided by (1_4/7) =
4_2/3
| -7| + | 3 |
10
15/8 - 7/8 + 3/8 =
11/8
(1/4) - (6/7) + (3/14) =
-11/28
(12_5/8) - 3/4 =
11_7/8
(15_3/4) divided by (-2_5/8) =
-6
| -3 | - | 9 |
- 6