Odpowiedź:
a)
2 5/9 + 5 7/9 = 5 12/9 = 6 3/9 = 6 1/3
b)
4 - 8/10 = 4 - 4/5 = 3 1/5
c)
5 7/9 - 2 3/9 = 3 4/9
d)
3/8 + 11/12 = 9/24 + 22/24 = 31/24 = 1 7/24
e)
4 5/6 + 2 1/4 = 4 10/12 + 2 3/12 = 6 13/12 = 7 1/12
f)
8/10 - 1/6 = 4/5 - 1/6 = 24/30 - 5/30 = 19/30
g)
4 4/6 - 2 7/15 = 4 2/3 - 2 7/15 = 4 10/15 - 2 7/15 = 2 3/15 = 2 1/5
h)
6 - 1 3/9 = 6 - 1 1/3 = 4 2/3
i)
5 3/8 - 1 2/3 = 5 9/24 - 1 16/24 = 4 33/24 - 1 16/24 = 3 17/24
j)
7 6/13 - 2 1/2 = 7 12/26 - 2 13/26 = 6 38/26 - 2 13/26 = 4 25/26
Szczegółowe wyjaśnienie:
