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-2 3/7 + 1 5/7 = -1 10/7 + 1 5/7 = -5/7
-8 2/11 - 1 9/11 = -10
-4 1/2 - 0,75 = -4,5 - 0,75 = -5,25
-4/5 * 3 3/4 + 4,5 : (-1,5) = -4/5 * 15/4 - 3 = -3 - 3 = -6
( - 1 1/6) * (-2/7) + 12,4/37,2 = (-7/6) * (-2/7) + 0,3333 =
= 1/3 + 1/3 = 2/3
-12,64 : (-4) - 13 1/2 : (-27) =
= 3,16 - 27/2 : (-27) = 1/2
- 1,2/0,6 + 4,8/0,8 - 12,66/2,11 =
= -2 + 6 - 6 = -2
jesli masz w jednym dzialaniu ulamki zwykle i dziesietne, musisz doprowadzic je do tego samego typu (konieczne)