Xiaohong collects 24 specimens, and after giving 4 to Xiaofang, Xiaohong happens to belong to Xiaofang (2/3). How many pieces does Xiaofang have?
小红采集标本24件，送给小芳4件后，小红恰好是小芳的(2/3)．小芳原有多少件？
<gadget id="calculator">24 - 4</gadget>
<output>20</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">20 / (2/3)</gadget>
<output>30</output>

<gadget id="calculator">30 - 4</gadget>
<output>26</output>

<result>26</result>