Odpowiedź:
b)
1 1/4 + 3 5/6 = 1 3/12 + 3 10/12 = 4 13/12 = 5 1/12
c)
7/9 - 3/4 = 28/36 - 27/36 = 1/36
d)
2 3/4 - 1 5/8 ? 1 1/25 = 2 6/8 - 1 5/8 ? 1 1/25 = 1 1/8 ? 1 1/25
a)
7 - 5/9 = 6 4/9
b)
3 1/7 - 1 3/4 = 3 4/28 - 1 21/28 = 2 32/28 - 1 21/28 = 1 11/28
c)
3 6/12 - 2 2/9 = 3 18/36 - 2 8/36 = 1 10/36 = 1 5/18
Szczegółowe wyjaśnienie:
