30 hectares of sugar cane are planted, and the average yield of sugar cane per hectare is 147 tons. 80% of the total is used for sugar extraction, and the sugar yield rate of sugar cane is 15%. How many tons of sugar can be squeezed in total?
种甘蔗30公顷，平均每公顷产甘蔗147吨，把总数的80%用来榨糖，甘蔗出糖率为15%，共可榨糖多少吨？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">147 * 30 * (4/5) * (3/20)</gadget>
<output>2_646/5 = around 529.2</output>

<result>2_646/5 = around 529.2</result>