Use 25, (3/4), (5/6) three numbers, add "+""-""*""/" or "how much" to form two two-step calculation formulas, and then calculate ．
用25，(3/4)，(5/6)三个数，再添上"+""-""*""/"或"多少"，分别组成两个两步运算的算式，然后进行计算．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<gadget id="calculator">(3/4) * (5/6)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">25 / (5/8)</gadget>
<output>40</output>

<result>40</result>