Xiaohua's family contracted a vegetable field. In March, they harvested 41.6 tons of cabbage. In April, they harvested 20% less than in March. How many tons of cabbage were harvested in April?
小华家承包了一块菜地，三月份收白菜41.6吨，四月份比三月份少收了二成，四月份收白菜多少吨？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">41.6 * (4/5)</gadget>
<output>33.28</output>

<result>33.28</result>