What is the solution of the equation x/(2/7)=(2/7) x=
方程x/(2/7)=(2/7)的解是x=多少
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(2/7) * (2/7)</gadget>
<output>4/49 = around 0.081633</output>

<result>4/49 = around 0.081633</result>