A bundle of wires is 120 meters long. (1/2) is used for the first time, and (1/5) is used for the second time. How many meters are used for the two times?
一捆电线长120米，第一次用去它的(1/2)，第二次用去它的(1/5)，两次一共用了多少米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">120 * (7/10)</gadget>
<output>84</output>

<result>84</result>