A 7-meter-long piece of wood is sawed into several equal pieces, sawed 4 times, what is the length of each piece in meters
把一根7米长的木料锯成相等的几小段，锯4次，每小段的长度是多少米
<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">7 / 5</gadget>
<output>7/5 = around 1.4</output>

<result>7/5 = around 1.4</result>