Odpowiedź:
2 i 3/8 + 1 i 1/6 = 2 i 9/24 + 1 i 4/24 = 3 i 13/24
3 i 1/15 - 1 i 1/10 = 3 i 2/30 - 1 i 3/30 = 2 i 32/30 - 1 i 3/30 = 1 i 29/30
4 i 3/7 + 2 i 2/3 = 4 i 9/21 + 2 i 14/21 = 6 i 23/21 = 7 i 2/21
2/3 + 1/5 = 10/15 + 3/15 = 13/15
2 i 3/8 +1 i 1/6= 2 i 9/24 + 1 i 4/24= 3 i 13/24
3 i 1/15 - 1 i 1/10= 3 i 2/30- 1 i 3/30= 2 i 32/30- 1 i 3/30= 1 i 29/30
4 i 3/7 +2 i 2/3= 4 i 9/21 + 2 i 14/21= 6 i 23/21= 7 i 2/21
2/3 +1/5= 10/15 + 3/15= 13/15
Szczegółowe wyjaśnienie:
