A piece of iron wire (4/5) is 8 meters, how many meters is the length of this iron wire?
一根铁丝用去(4/5)是8米，这根铁丝长多少米．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">8 / (4/5)</gadget>
<output>10</output>

<result>10</result>