x - 2 1/3 = 5 2/7
х=5 2/7+2 1/3
х=5 6/21+2 7/21
х=7 13/21
y - 5 1/6 = 3
у=3+5 1/6
у=8 1/6
z - 1 3/4 = 2 7/12
z=2 7/12+1 3/4
z=2 7/12+1 9/12
z=3 16/12
z=3 4/3
z=4 1/3
m - 7 1/9 = 2 5/36
m=2 5/36+7 1/9
m=2 5/36+7 4/36
m=9 9/36
m= 9 1/4
n - 10 7/12 = 3 1/6
n=3 1/6+10 7/12
n=3 2/12+10 7/12
n=13 9/12
n=13 3/4
k - 6 1/7 = 1 5/14
k=1 5/14+6 1/7
k=1 5/14+6 2/14
k=7 7/14
k=7 1/2