odejmowanie ułamków
6 3/7 -2/7=
4 2/9-2 2/9=
3 2/5 - 2 4/5=
10-1 6/9=
5 4/11 - 9/11=
2 1/3 - 1 2/3=
7-1 7/9=
3 3/13-2 7/13=







Odpowiedź :

Odpowiedź:

6 i 3/7 - 2/7= 6 i 1/7

4 i 2/9 - 2 i 2/9= 2

3 i 2/5 - 2 i 4/5= 2 i 7/5 - 2 i 4/5= 3/5

10 - 1 i 6/9= 9 i 9/9- 1 i 6/9= 8 i 3/9= 8 i 1/3

5 i 4/11 - 9/11=  4 i 15/11- 9/11= 4 i 6/11

2 i 1/3 - 1 i 2/3= 1 i 4/3 - 1 i 2/3= 2/3

7 - 1 i 7/9= 6 i 9/9- 1 i 7/9= 5 i 2/9

3 i 3/13 - 2 i 7/13= 2 i 16/13- 2 i 7/13= 9/13

Szczegółowe wyjaśnienie:

Odpowiedź:

6 i 3/7 - 2/7 = 6 i 1/7

4 i 2/9 - 2 i 2/9 = 2

3 i 2/5 - 2 i 4/5 = 2 i 7/5 - 2 i 4/5 = 3/5

10 - 1 i 6/9 = 9 i 9/9 - 1 i 6/9 = 8 i 3/9 = 8 i 1/3

5 i 4/11 - 9/11 = 4 i 15/11 - 9/11 = 4 i 6/11

2 i 1/3 - 1 i 2/3 = 1 i 4/3 - 1 i 2/3 = 2/3

7 - 1 i 7/9 = 6 i 9/9 - 1 i 7/9 = 5 i 2/9

3 i 3/13 - 2 i 7/13 = 2 i 16/13 - 2 i 7/13 = 9/13