Odpowiedź:
zadanie 2
a) 4/4-1/4=3/4
10/10-7/10=3/10
b)20/20-6/20=14/20
100/100-25/100=75/100
c)16/6-5/6=15/6
23/3-1/3=22/3
d)310/10-6/10=34/10
47/7-1/7=46/7
