Common Denominator
3/4 5/8
8
1/2 + 3/4
5/4 = 1 (1/4)
6 − 1/6
35/6 or 5 (5/6)
(2/3)(5/7)
10/30 or 1/3
1/2 ÷ 8/7
7/16
3/7 6/49
49
3/4 + 1/12
10/12 = 5/6
(− 4/5) − 7/8
− 67/40 or -1 (27/40)
(-3/4)(5/7)
(-15/28)
−1/2 ÷ 5/4
-4/10 or -2/5
3/4 5/6
12 or 24
3(1/2) + (- 2/5)
3 (1/10)
1/2 - (-2/3)
1 1/6
(-3/7)(-5/9)
15/63 or 5/21
−3/2 ÷ −10/7
21/20 or 1 (1/20)
6/7 8/10
70
(-4/7) + (-6/11)
-86/77 0r -1 (9/77)
(-1/4) - 5/7
-27/28
-3(1/2) * -8/21
4/3 or 1(1/3)
−9/5 ÷ 2
-9/10
5/11 4/134
1474
4/8 + (-3/5)
-4/40 or -1/10
(− 4/3) − ( − 3/2)
1/6
−2 (2/3) ⋅ 4 (1/10)
−10 (14/15)
−2 ÷ −3 (4/5)
10/19