Verified answer

(- 1 3/35) * (- 56/57) + 3 5/21 : (-1 22/63) = - 1 1/3

1) -1 3/35*(-56/57)= 1 1/15

2) 3 5/21:(-1 22/63)= -2 2/5

3) 1 1/15+(-2 2/5)= - 1 1/3

- 10.125* 3 1/3 + (- 8.75) * 2 4/7= - 56,25

1) - 10,125*3 1/3= - 33,75

2) - 8,75*2 4/7= - 22,5

3) -33,75+(-22,5)= - 56,25