Ответ:
Пошаговое объяснение:
(-8 7/8+(-9,6)-3/5*25/9+(-7/8+(-6/4))-(-13/4:7.8)=-22 1/10
1) -8 7/8+(-9,6)=-8 7/8-9 3/5=-8 35/40-9 24/40=-17 59/40=
-18 19/40
2) 3/5*25/9=5/3=1 2/3
3) -7/8+(-6/4)=-7/8-12/8=-19/8=-2 3/8
4) -18 19/40-1 2/3=-18 57/120-1 80/120=-19 137/120=-20 17/120
5) -20 17/120+(-2 3/8)=-20 17/120-2 45/120=-22 62/120=-22 31/60
6) -13/4:7.8=-13/4*5/39=-5/12
7) -22 31/60-(-5/12)=-22 31/60+25/60=-22 6/60=-22 1/10