A 12-meter rope, after cutting off (1/3) meter, how many meters are left
一根12米的绳子，截去(1/3)米后，还剩多少米
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12 - (1/3)</gadget>
<output>35/3 = around 11.666667</output>

<result>35/3 = around 11.666667</result>