Two road repairing teams work together to build a road. Team A has repaired the full length (2/9), and team B has repaired the full length (3/8). What fraction of the road is left to be repaired?
两个修路队合修一条公路，甲队修了全长的(2/9)，乙队修了全长的(3/8)，这条公路还剩几分之几没修？
<gadget id="calculator">2 / 9</gadget>
<output>2/9 = around 0.222222</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(2/9) + (3/8)</gadget>
<output>43/72 = around 0.597222</output>

<gadget id="calculator">1 - (43/72)</gadget>
<output>29/72 = around 0.402778</output>

<result>29/72 = around 0.402778</result>