A bag of melon seeds weighs 50 kilograms, 20 kilograms are sold, and the rest are sold in small packages. Each package (3/4) kilograms, how many small packages can be packaged?
一袋瓜子重50千克，卖出20千克，余下的包装成小包出售，每包(3/4)千克，能包装成多少小包？
<gadget id="calculator">50 - 20</gadget>
<output>30</output>

<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">30 / (3/4)</gadget>
<output>40</output>

<result>40</result>