Odpowiedź :
Odpowiedź:
a)
2/5 + 11/15 = 6/15 + 11/15 = 17/15 = 1 i 2/15
b)
7/14 + 17/21 = 21/42 + 34/42 = 55/42 = 1 i 13/42
c)
3/4 + 11/16 = 12/16 + 11/16 = 23/16 = 1 i 7/16
d)
8/9 + 4/7 = 56/63 + 36/63 = 92/63 = 1 i 29/63
Odpowiedź:
a) 6/15 + 11/15= 17/15 = 1 2/15
b) 14/21 + 17/21 = 31/21=1 13/42
c) 12/16 + 11/16 = 23/16= 1 7/16
d) 56/63 + 28/63 = 84/63 = 1 29/63