Question

помогите решить пример 7-3/5+2/7/9

Answer 1

7-3/5+2/7/9=9 8/45
1)6 5/5-3/5=6 2/5
2)6 2/5+2 7/9=8 18/45+35/45=9 8/45

Answer 2

7-3/5+2 7/9=6 45/45-27/45+2 35/45= 8 (45-27+35)/45=8 53/45=9 8/45.