Odpowiedź:
Szczegółowe wyjaśnienie:
a) 1 - 4/7 = 1/1 - 4/7 = 7/7 - 4/7 = 3/7
b) 1 - 2/5 = 5/5 - 2/5 = 3/5
c) 2- 5/8 = 2/1 - 5/8 = 16/18 -5/8 = 11/8 = 1 3/8
d) 6 - 3/4 = 6/1 - 3/4= 24/4 - 3/4= 21/4 = 5 1/4
e) 8 -1 6/7 = 8/1 - 13/7 = 56/7 - 13/7 = 43/7 = 6 1/7
f) 12 - 5 7/13 = 12/1 - 72/13 = 156/13 -72/13 = 84/13= 6 6/13
g) 5 - 2 3/5 = 5/1 - 13/5 = 25/5 -13/5 = 12/5 = 2 2/5
h) 9 - 5 4/7 = 9/1 - 39/7 = 63/7 -39/7 = 24/7 =3 3/7
