How much more 12 meters than 7 meters (fill in fractions).
12米比7米多多少(填几分之几)．
<gadget id="calculator">12 - 7</gadget>
<output>5</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<result>5/7 = around 0.714286</result>