Respuesta :

1.8 is the answer

1/10+2/5 is equal to 0.5

That divided by 9/10 is 1.8 or 1 8/10


452
[tex]\boxed{ \frac{ \frac{9}{10} }{( \frac{1}{10} + \frac{2}{5} )} = \frac{ \frac{9}{10} }{ \frac{1}{2} } = \frac{9}{10} . \frac{2}{1} = \frac{18^{\div2}}{10^{\div2}} ~\to~\boxed{ \frac{9}{5}} }[/tex]

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