A piece of iron wire is used up (4/5) meters, exactly (1/6) of it, how many meters are left?
一根铁丝，用去(4/5)米，正好是它的(1/6)，还剩下多少米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(4/5) / (1/6)</gadget>
<output>24/5 = around 4.8</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(24/5) * (5/6)</gadget>
<output>4</output>

<result>4</result>