Выполните вычитание: 1) 1-4/9 2) 8 8/15 - 4 9/20 3) 4- 3 3/4 4) 9 4/21-4 11/14 5)7 1/10-3 1/6 6)5 5/33 - 4 7/22

1 - 4/9=9/9 - 4/9=5/9

8 8/15 - 4 9/20=8 32/60 - 4 27/60=4 5/60=4 1/12

4 - 3 3/4=3 4/4 - 3 3/4=1/4

9 4/21 - 4 11/14=9 8/42 - 4 33/42=8 50/42 - 4 33/42=4 17/42

7 1/10 - 3 1/6=7 3/30 - 3 5/30=6 33/30 - 3 5/30=3 28/30=3 14/15

5 5/33 - 4 7/22=5 10/66 - 4 21/66=4 76/66 - 4 21/66=55/66=5/6

1) 1-4/9=9/9-4/9=5/9
2) 8 8/15 - 4 9/20= 128/15-89/20=512/60-267/60= 245/60= 49/12= 4 1/12
3) 4- 3 3/4=4-15/4=16/4-15/4= 1/4=0,25
4) 9 4/21-4 11/14= 193/21- 67/14= 386/42-201/42=185/42= 4 17/42
5)7 1/10-3 1/6=71/10-19/6= 213/30-95/30= 118/30=59/15=3 14/15
6)5 5/33 - 4 7/22= 170/33-95/22= 340/66-285/66=55/66=5/6