Odpowiedź:
a) 5 - 4/7 = 4 3/7
b) 3 2/5 - 1 4/5 = 2 7/5 - 1 4/5 = 1 3/5
c) 7 4/11 - 2 9/11 = 6 15/11 - 2 9/11= 4 6/11
d) 4 1/4 - 1 3/4= 3 5/4 - 1 3/4= 2 2/4= 2 1/2
e) 6 - 2/3= 5 1/3
f) 5 3/8 - 2 5/8= 4 11/8 - 2 5/8= 2 6/8 = 2 3/4
