Question

6-5 1/7

7-2 2/7

4 5/7-6/7

15-(7 2/9+4 5/9)

Answer 1

1)6-5 17=5 77- 5 17=67

2)7-2 27=6 77-2 27=4 57

3)4 57-67=3 127-67=3 67

4)15-(7 29+4 59)=15-11 79=14 99-11 79=3 29