a) 2 2/10-3 1/2= 22/10 - 7/2 = 22/10 - 35/10 = -13/10
b) -6 3/10 - 2 2/5 = -63/10 - 12/5 = -63/10 - 24/10 = -87/10 = -8 7/10
e) 2 1/4 - 3 1/2 = 9/4 - 7/2 = 9/4 - 14/4 = - 5/4
f) - 5 1/8 --1/4 = -41/8 - 1/4 = -41/8 - 2/8 = -43/8 = -5 3/8
Szczegółowe wyjaśnienie:
