A wire has a total length of 32 meters, 20% of the total length is used for the first time, and (1/2) of the total length is used for the second time. How many meters are shared between two trips?
一根电线全长32米，第一次用去了全长的20%，第二次用去了全长的(1/2)．两次共用去多少米？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/5) + (1/2)</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">32 * (7/10)</gadget>
<output>112/5 = around 22.4</output>

<result>112/5 = around 22.4</result>