(1-(1/8))x=56．
(1-(1/8))x=56．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">56 / (7/8)</gadget>
<output>64</output>

<result>64</result>