2,5·(-6)·0,9·(-0,36)/0,2·(-8,1)·2,5

-2,5·(-6)·0,9·(-0,36)/0,2·(-8,1)·2,5 = -4.86 / -4.05 = 1.2

-2,5·(-6)·0,9·(-0,36)/0,2·(-8,1)·2,5
2.5•6•0.9•0.36÷0.2•8.1•2.5
15•0.9•0.36÷0.2•8.1•2.5
13.5÷0.2•8.1•2.5
4.86÷0.2•8.1•2.5
24.3•8.1•2.5
196.83•2.5
492.075
ответ:492.075