Odpowiedź:
a) 2 i 4/11 +15 i 7/11 +23 i 5/11+8 i 1/11= 48 i 17/11= 49 i 6/11
b) 3 i 4/9 + 3 i 2/9 + 2 i 3/9 + 4 i 1/2= 3 i 8/18 + 3 i 4/18 + 2 i 6/18 +4 i 9/18=
= 12 i 27/18= 13 i 9/18= 13 i 1/2
c) 3 i 1/2 +5 i 6/7 +4 i 5/7 +5 i 1/2 + 7 i 4/7=
= 3 i 7/14 + 5 i 12/14+ 4 i 10/14+5 i 7/14 + 7 i 8/14=24 i 44/14=
=27 i 2/14= 27 i 1/7
d) 2 i 2/3 + 4 i 1/8 +1 i 1/2 +3 i 1/3 +2 i 3/8=
= 2 i 16/24 + 4 i 3/24 + 1 i 12/24+ 3 i 8/24 + 2 i 9/24=12 i 48/24= 14
Szczegółowe wyjaśnienie:
