1)х+ 4 2/7=7,3
х=7 3/10- 4 2/7, х=7 21/70 - 4 20/70, х=3 1/70
8/9+а = 6 1/9, а =6 1/9- 8/9, а =5 2/9
9 1/5 - у = 7 3/5, у= 9 1/5 - 7 3/5, у =8 6/5-7 3/5, у =1 3/5
в-3/17= 1 16/17, в= 1 16/17+3/17, в=1 19/17, в =2 2/17
1)х+ 4 2/7=7,3
х=7 3/10- 4 2/7, х=7 21/70 - 4 20/70, х=3 1/70
8/9+а = 6 1/9, а =6 1/9- 8/9, а =5 2/9
9 1/5 - у = 7 3/5, у= 9 1/5 - 7 3/5, у =8 6/5-7 3/5, у =1 3/5
в-3/17= 1 16/17, в= 1 16/17+3/17, в=1 19/17, в =2 2/17