(-6,4/0,48)^2 - 7 41/42 : (-2 11/28) = 181 целая 1/9
1) - 6,4/0,48 = - 640/48 = - 40/3
2) (-40/3)^2 = (-40/3) * (-40/3) = 1600/9 = 177 целых 7/9
3) 7 41/42 : (-2 11/28) = 335/42 : (-67/28) = 335/42 * (-28/67) = - (5*2)/(3*1) = - 10/3 = - 3 целых 1/3
3) 177 целых 7/9 - (-3 целых 1/3)= 177 целых 7/9 + 3 целых 3/9 = 180 целых 10/9 = 181 целая 1/9