How much is the reciprocal of (3/4) smaller than 4 times itself.
(3/4)的倒数比它本身的4倍小多少．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">4 / 3</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">3 - (4/3)</gadget>
<output>5/3 = around 1.666667</output>

<result>5/3 = around 1.666667</result>