Odpowiedź:
a) 43/8 - 23/6 = 129/24 - 92/24 = 37/24 = 1 13/24
b) 11/3 + 4/7 + 2/9 + 1/3 = 231/63 + 36/63 + 14/63 + 21/63 = 302/63 = 4 50/63
c) 145 3/10 - 142 7/15 = 145 9/30 - 142 14/30 = 2 5/6
d) 16/7 * 23/8 = 2/7 * 23 = 46/7 = 6 4/7
e) 29/9 : 58/3 = 29/9 * 3/58 = 1/3 * 1/2 = 1/6
