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2014-04-16T15:17:55+03:00
A,b   ip  cu 0,2 =2/10= 1/5               0,1(6)= 16-1/90=15/90=1/6
a*1/5=b*1/6=k
a/5=  b/6=k
a=5k   b=6k

2a+3b=56
2*5k+3*6k=56
10k+18k=56
28k=56
k=2      a=2*2=4    b=6*2=12