5/9:(-1/3)-7; 5/12:1/4-(-1/3); 4/9:(-2/3)+1

Question

5/9:(-1/3)-7; 5/12:1/4-(-1/3); 4/9:(-2/3)+1

Answer 1

1)1. 5/9*(-3)=-1 2/3
   2. -5/3-7=-8 2/3
2)1. 5/12*4=1 2/3
   2. 5/3+1/3=2
3)1. 4/9*(-3/2)=-2/3
   2. -2/3+3/3=1/3