The ratio of inventory tonnage between warehouses A and B is 4:3. If warehouse A takes out 8 tons and puts them in warehouse B, the ratio of inventory tonnage between warehouses A and B is 4:5. How many tons does warehouse A have in stock now? (proportional solution)
甲、乙两仓库存货吨数比是4：3，如果甲仓库取出8吨放到乙仓库中，则甲、乙两仓库存货吨数比是4：5，现在甲仓有货多少吨？(比例解答)
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) * 8</gadget>
<output>32/5 = around 6.4</output>

<gadget id="calculator">8 + (32/5)</gadget>
<output>72/5 = around 14.4</output>

<gadget id="calculator">(4/5) * 3</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">4 - (12/5)</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">(72/5) / (8/5)</gadget>
<output>9</output>

<gadget id="calculator">4 * 9</gadget>
<output>36</output>

<gadget id="calculator">36 - 8</gadget>
<output>28</output>

<result>28</result>