помогите по действиям!!!(2,5-2 1/3)*(-5 1/7)+1 1/3÷(-5,6)=

2,5-2 1/3=2 1/2-2 1/3=2 3/6-2 2/6=1/6

1/6*(-5 1/7)=1/6*(-36/7)=-6/7

1 1/3:(-5,6)=1 1/3:(-5 3/5)=4/3*(-5/28)=

-5/18

-6/7+(-5/18)=-108/126-35/126=-143/126

=-1 17/126

(2,5 - 2 1/3) * (-5 1/7) + 1 1/3 : (-5,6) = -1 43/84

1) 2 1/2 -2 1/3 = 5/2 -7/3 = 15/6 -14/6 = 1/6

2) 1/6 * (- 5 1/7) = 1/6 * (- 36/7) =  -6/7

3) 11/3 : (-5 3/5) = 11/3 : (-28/5) =11/3 * (- 5/28) = - 55/84

4) - 6/7  + (-55/84) = -72/84 - 55/84 = - 127/84 = -1  43/84