(8/15+2/9У):3/5=2
(8/15+2/9у)=2*3/5
8/15+2/9у=6/5
2/9у=6/5-8/15
2/9у=18/15-8/15
2/9у=10/15
у=2/3 : 2/9
у=2/3*9/2
у=3
(8/15+2/9У):3/5=2
(8/15+2/9у)=2*3/5
8/15+2/9у=6/5
2/9у=6/5-8/15
2/9у=18/15-8/15
2/9у=10/15
у=2/3 : 2/9
у=2/3*9/2
у=3