The diameter of a bicycle wheel is 0.7m, the front gear has 48 teeth, and the rear gear has 16 teeth. How many meters does the bicycle travel in one circle?
一辆自行车的车轮直径是0.7m，前齿轮有48个齿，后齿轮有16个齿，蹬一圈自行车前进多少米？
<gadget id="calculator">3.14 * 0.7</gadget>
<output>2.198</output>

<gadget id="calculator">48 / 16</gadget>
<output>3</output>

<gadget id="calculator">2.198 * 3</gadget>
<output>6.594</output>

<result>6.594</result>