Cut a 6 decimeter long iron wire 3 times and cut it into small pieces of equal length.
把一根长6分米的铁丝截3次，截成了长度相等的小段，每小段的长度是多少分米，第二小段占全长的((())/(()))．
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">6 / 4</gadget>
<output>3/2 = around 1.5</output>

<result>3/2 = around 1.5</result>