Odpowiedź:
a] -7 4/9 - 2 1/6 = - 67/9 - 13/6 = -402/54 - 117/54 = -519/54 = -173/18 = -9 11/18 = -9,61
b] 3 1/4 - 8 5/6 = 13/4 - 53/6 = 78/24 - 212/24 = - 134/24 = -67/12 = -5 7/12 = -5,383
c] -2 3/5 + 7 1/3 = -13/5 + 22/3 = -39/15 + 110/15 = 71/15 = 4 11/15 = 4,73
d] -3,12 - 6,1 = -3,12 - 6,10 = -9,22
e] 6,4 - 10,25 = 6,40 - 10,25 = -3,85
f] 4 5/6 - 8,2 = 29/6 - 82/10 = 290/60 - 492/60 =-202/60 = - 101/30 = -3 31/30 = -3,36
Szczegółowe wyjaśnienie: