An engineering team repairs a road with a length of 120 kilometers. The full length (1/4) is repaired in the first month, and the rest (3/5) is repaired in the second month. How many kilometers of this road are left to be repaired? ?
一个工程队修一条公路长120千米，第一个月修了全长的(1/4)，第二个月修了剩下的(3/5)，这条公路还剩下多少千米没有修？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">120 * (3/4)</gadget>
<output>90</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">90 * (3/5)</gadget>
<output>54</output>

<gadget id="calculator">90 - 54</gadget>
<output>36</output>

<result>36</result>