5 2/6 - 5/6 = 32/6 -5/6=27/6=9/2= 4 1/2
2 1/3 -2/3=7/3-2/3=5/3=1 2/3
4 5/9-8/9=37/9-8/9=29/9= 3 2/9
3 1/2 -1 5/12=7/2-17/12=42/12-17/12=25/12= 2 1/12
6 3/7 - 5 5/7= 45/7-40/7=5/7
4 1/8 - 3 5/8 = 33/8-29/8 = 4/8=1/2
К=(412*119)/213=230,178403756
все
3.14/100; 10.8/10; 443.91/100; 7.8/1000; 91/100; 3/100.