Odpowiedź :
Odpowiedź:
5- 3 1/7= 4 7/7- 3 1/7= 1 6/7
3 2/9-1 5/6= 3 4/18- 1 15/18=2 22/18- 1 15/18=1 7/18
5 2/7- 2 3/4= 5 8/28-2 21/28= 4 36/28-2 21/28=2 15/28
2 1/3- 1 5/7= 2 7/21-1 15/21= 1 28/21-1 15/28=1 13/28
Szczegółowe wyjaśnienie:
Odpowiedź:
5 - 3 i 1/7 = 4 i 7/7 - 3 i 1/7 = 1 i 6/7
3 i 2/9 - 1 i 5/6 = 3 i 4/18 - 1 i 15/18 = 2 i 22/18 - 1 i 15/18 = 1 7/18
5 i 2/7 - 2 i 3/4 = 5 i 8/28 - 2 i 21/28 = 4 i 36/28 - 2 i 21/28 = 2 i 15/28
2 i 1/3 - 1 i 5/7 = 2 i 7/21 - 1 i 15/21 = 1 i 28/21 - 1 i 15/21 = 13/21