The chemical fertilizer factory uses two large and small vehicles to transport 47 tons of fertilizer. The large vehicle transported 8 times, and the small vehicle transported 6 times just to finish. The large vehicle transported 4 tons each time. How many tons did the small vehicle transport each time?
化肥厂用大、小两辆汽车运47吨化肥，大汽车运了8次，小汽车运了6次正好运完，大汽车每次运4吨，小汽车每次运多少吨？
<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<gadget id="calculator">47 - 32</gadget>
<output>15</output>

<gadget id="calculator">15 / 6</gadget>
<output>5/2 = around 2.5</output>

<result>5/2 = around 2.5</result>