Odpowiedź:
zad 6
a)
4 1/9 = 3 10/9
8 3/8 = 7 11/8
b)
10 7/10 = 9 17/10
4 4/17 = 3 21/17
c)
4 1/3 = 13/3
3 4/5 = 19/5
d)
7 = 49/7
11 = 33/3
zad 7
a) 6 7/9 - 1/3 = 6 7/9 - 3/9 = 6 4/9
b) 5 1/4 - 5/8 = 5 2/8 - 5/8 = 4 10/8 - 5/8 = 4 5/8
c) 1 1/2 - 5/9 = 1 9/18 - 10/18 = 27/18 - 10/18 = 17/18
d) 7 3/4 - 5 7/9 = 7 27/36 - 5 28/36 = 6 63/36 - 5 28/36 = 1 35/36
