The road repair team paved a road, the full length was paved in the first half of May (3/10), and the full length was paved in the second half of May (3/5). How much of the road remains unpaved?
修路队铺一条路，五月份上半月铺了全长的(3/10)，下半月铺了全长的(3/5)．还剩这段路的几分之几没有铺？
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

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

<gadget id="calculator">(3/10) + (3/5)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">1 - (9/10)</gadget>
<output>1/10 = around 0.1</output>

<result>1/10 = around 0.1</result>