Question

dacă
$\frac{2x}{3y} = \frac{4}{5} \:$
Atunci
$\frac{x}{?y} =$
​

Answer 1

Răspuns:

Explicație pas cu pas:

$\frac{2x}{3y} =*\frac{4}{5} |*\frac{3}{2}, \frac{2x}{3y}*\frac{3}{2}=\frac{4}{5}*\frac{3}{2}\\\frac{x}{y}=\frac{4*3}{5*2}=\frac{6}{5}$

Answer 2

 

$\displaystyle\\\frac{2x}{3y}=\frac{4}{5}\\\\\\\frac{2}{3}\times\frac{x}{y}=\frac{4}{5}\\\\\\\frac{x}{y}=\frac{~~\dfrac{4}{5}~~}{\dfrac{2}{3}}\\\\\\\frac{x}{y}=\frac{4}{5}\times\frac{3}{2}\\\\\\\frac{x}{y}=\frac{4\times3}{5\times2}\\\\\\\frac{x}{y}=\frac{2\times3}{5}\\\\\\\boxed{\bf\frac{x}{y}=\frac{6}{5}}$