If a piece of wood is sawed into 8 sections, the sawing fee will be 5.6 yuan. If it is sawed into 4 sections, how much will it cost?
一根木头锯成8段要付锯费5.6元，如果锯成4段要付多少元．
<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">5.6 / 7</gadget>
<output>0.8</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">0.8 * 3</gadget>
<output>2.4</output>

<result>2.4</result>