[tex]\displaystyle\bf\\\frac{0,19}{2+\dfrac{1}{9} } =\frac{0,19}{\dfrac{19}{9} }=0,19\cdot\frac{9}{19} =0,01\cdot 9=0,09[/tex]

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Ответ:

[tex]\frac{0,19}{2+\frac{1}{9} } =0,09[/tex]

[tex]1)2+\frac{1}{9} =2\frac{1}{9}[/tex]

[tex]2)0,19:2\frac{1}{9} =\frac{19}{100} :2\frac{1}{9}=\frac{19}{100}:\frac{19}{9}=\frac{19*9}{100*19}=\frac{9}{100}=0,09[/tex]