Выполните действия. 7- 3/5+2 7/9 3 5/12-4/5+ 31/60 6 5/9+ 3-7/12

7-3/5+2 7/9=6 5-3/5=6 2/5+2 7/9=8 18/45+35/45=8 53/45=9 8/45
3 5/12-4/5+31/60=3 25/60-48/60=2 85/60-48/60=2 37/60+31/60=2 68/60=3 8/60=3 4/12=3 1 /3
6 5/9+3-7/12=9 5/9-7/12=9 20/36-21/36=8 56/36-21/36=8 35/36