Odpowiedź:
a)
5 3/5 - 3 5/6 = 5 18/30 - 3 25/30 = 4 48/30 - 3 25/30 = 1 23/30
b)
3 2/3 + 4/7 + 2/9 + 1/3 = 4 + 36/63 + 14/63 = 4 50/63
c)
145 3/10 - 142 7/15 = 145 9/30 - 142 14/30 = 144 39/30 - 142 14/30 =
= 2 25/30 = 2 5/6
d)
2 2/7 * 2 5/8 = 16/7 * 21/8 = 6
e)
3 2/9 : 19 1/3 = 29/9 : 58/3 = 29/9 * 3/58 = 1/6
Szczegółowe wyjaśnienie:
