(3/8) of a number is (1/2), what is (1/5) of this number.
一个数的(3/8)是(1/2)，这个数的(1/5)是多少．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(1/2) / (3/8)</gadget>
<output>4/3 = around 1.333333</output>

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

<gadget id="calculator">(4/3) * (1/5)</gadget>
<output>4/15 = around 0.266667</output>

<result>4/15 = around 0.266667</result>