Пошаговое объяснение:
1) 1/2-(+4) = 1/2+4 = 4 1/2
2) -5/11-(-5/11) = -5/11+5/11 = - (5/11-5/11) = 0
3)-5 - (- 2 1/3) = -5 + 2 1/3 = - (5 - 2 1/3) = -2 2/3
4) -8-(-1/7) = -8 + 1/7 = - (8-1/7) = -7 6/7
6) -5/12 - (-4) = - 5/12+4 = 4 - 5/12 (т.к. 4>5/12) =3 7/12
Пошаговое объяснение:
1) 1/2-(+4) = 1/2+4 = 4 1/2
2) -5/11-(-5/11) = -5/11+5/11 = - (5/11-5/11) = 0
3)-5 - (- 2 1/3) = -5 + 2 1/3 = - (5 - 2 1/3) = -2 2/3
4) -8-(-1/7) = -8 + 1/7 = - (8-1/7) = -7 6/7
6) -5/12 - (-4) = - 5/12+4 = 4 - 5/12 (т.к. 4>5/12) =3 7/12