Answer:
1. ¼ + 2/12 = 3+5/12 = 5/12
2. 8/10 + ½ = 8-5/10 = 3/10
3. 7/8 + 2/4 = 7-4/8 = 3/8
4. 8/2 + ⅔ = 24-4/6 = 20/6= 3 1/3
5. 10/5 - 3/4 = 40-15/20 = 25/20 = 1 1/4