To build a highway, team A has built 60% of the total length, and team B has built 30% of the total length. By what percentage is team A more than team B?
修一条高速公路，甲队修了全长的60%，乙队修了全长的30%，甲队比乙队多修百分之几？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/5) - (3/10)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">(3/10) / (3/10)</gadget>
<output>1</output>

<result>1</result>