help me guys i need this tommorow

Answer:
1. 1/3
2. 1 3/8
3. 1/20
4. 5/9
Step-by-step explanation:
correct me if i'm wrong.
Answer:
Step-by-step explanation:
1. 1/2-1/6=1/3
2. 3/4+5/8= 1 3/8 or 11/8
3.8/10 - 3/4= 1/20
4.7/9 - 2/9= 5/9
Hope it helps