1/4
Пошаговое объяснение:
1) -3,8 + 2 1/3 = -3 4/5 + 2 1/3 = -3 12/15 + 2 5/15 = -1 7/15
2) -1 7/15 * (-1 7/8) = -22/15 * (-15/8) = 11/4
3) 4 1/6 : (-1 2/3) = 25/6 : (-5/3) = 25/6 * (-3/5) = -5/2
4) 11/4 + (-5/2) = 11/4 - 10/4 = 1/4
2)-1 7/8*(-1 14/30)=5 1/2
3)4 1/6:(-1 2/3)=-2 1/2
4)5 1/2+(-2 1/2)=3 1/2
1/4
Пошаговое объяснение:
1) -3,8 + 2 1/3 = -3 4/5 + 2 1/3 = -3 12/15 + 2 5/15 = -1 7/15
2) -1 7/15 * (-1 7/8) = -22/15 * (-15/8) = 11/4
3) 4 1/6 : (-1 2/3) = 25/6 : (-5/3) = 25/6 * (-3/5) = -5/2
4) 11/4 + (-5/2) = 11/4 - 10/4 = 1/4