Distribute 180 apples to the big class and the small class in the kindergarten. The number of apples (1/4) given to the big class is equal to the number of apples (1/5) given to the small class. How many apples will the small class get?
把180个苹果分给幼儿园大班和小班，大班分得苹果数的(1/4)和小班分得苹果数的(1/5)相等，小班得多少个．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * 180</gadget>
<output>45</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/4) + (1/5)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">45 / (9/20)</gadget>
<output>100</output>

<result>100</result>