-2 1/5+ 3,3 1 5/6- 3 1/3 4,3-7,5 -4,5- 2 1/4 -3 1/6- (-5 5/6) 7 1/3+ (-4 5/6? -5 4/7+ 7 1/23-9 -6- (-4 5/9)

-21\over5 + 3,3 = -2,2 + 3,3 = 1,1 15\over6 - 31\over3 = 15\over6 - 32\over6 = -23\over6 4,3 - 7,5 = -3,2 -4,5 - 21\over4 = -4,5 - 2,25 = -6,75 -31\over6 - ( -55\over6) = 26\over6 = 3 71\over3 + ( -45\over6 = 71\over3 + -45\over6 = 72\over6 + -45\over6 = 37\over6 = 41\over6 -54\over7 + 7 = -54\over7 + 49\over7 = -553\over7 = -124\over7 1\over23 - 9 = -822\over23 -6 - ( -45\over9 = -25\over9

-6-(4 5/9)=-6+4 5/9=-1 4/9

Kinguś_1605: Przedostatnie dobrze, ale ostatnie niestety nie: -6-(-4~{5\over9})=-6+4~{5\over9}=-1~{4\over9}