Ответ:

Пошаговое объяснение:

1 кубик :

-10 - (-2 1/7 + (-5 4/7) + (-3/7) ) =

-10 - (-2 1/7 - 5 4/7 - 3/7) =

-10 - (-7 8/7) = -10 - (-8 1/7) = -10 + 8 1/7 = -9 7/7 + 8 1/7 = -1 6/7

2 кубик:

-10 - (-1 4/5 + (-5 3/5) + (-2 4/7) ) =

-10 - (-1 4/5 - 5 3/5 - 2 4/7) =

-10 - (-8 11/7) =

-10 - (-9 4/7) = -10 + 9 4/7 = -9 7/7 + 9 4/7 = -3/4

3 кубик:

-10 - (-5/9 + (-2 7/9) + (-1 2/9) ) =

-10 - (-5/9 - 2 7/9 - 1 2/9) =

-10 - (-3 14/9) =

-10 - (-4 5/9) =

-10 + 4 5/9 = -9 9/9 + 4 5/9 = -5 4/9

4 кубик:

-10 - (-6 8/11 + (-2/11) + (-2 5/11) ) =

-10 - (-6 8/11 - 2/11 - 2 5/11) =

-10 - (-8 15/11) =

-10 - (-9 4/11) =

-10 + 9 4/11 = -9 11/11 + 9 4/11 = -7/11