ВАЖНО:(-2.5+2.1/3)*(5.1/7)+1.1/3:(-5.6)=?

Question

ВАЖНО:(-2.5+2.1/3)*(5.1/7)+1.1/3:(-5.6)=?

Answer 1

1) -2,5+2.1/3=-1/6
2)-1/6×36/7=-6/7
3)1,1/3:(-5.6)=5/21
4)-6/7+5/21=-13/21