Read a book, read (1/6) of the whole book every day, how much of the whole book you read in 4 days.
看一本书，每天看全书的(1/6)，4天看了全书的多少．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) * 4</gadget>
<output>2/3 = around 0.666667</output>

<result>2/3 = around 0.666667</result>