А) 1-1/3= 1-3/10= 1-3/4= 4-1/9= 8-2/3= 5-2/5= б

1-1/3=3/3-1/3=2/3

1-3/10=10/10-3/10=7/10

4-1/9=3 9/9-1/9=3 8/9

8-2/3=7 3/3-2/3=7 1/3

5-2/5=4 5/5-2/5=4 2/5

5 7/9-3=2 7/9

12 1/4-9=3 1/4

6-3 2/5=5 5/5-3 2/5=2 3/5

1-1/3=2/3

1-3/4=1/4

4-1/9=3 8/9

8-2/3=7 1/3

5-2/5=4 3/5

Б)

5 7/9-3=2 7/9

6-3 2/5=3 3/5

4-2 3/5=2 2/5

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

10 8/9-2/9=10 2/3

6 1/7-1=5 1/7

7-5 3/7= 1 4/7

2 3/5-3/5=2