(2/3) multiplied by a number equals (3/10), what is the number
(2/3)乘以一个数等于(3/10)，这个数是多少
<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

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

<gadget id="calculator">(3/10) / (2/3)</gadget>
<output>9/20 = around 0.45</output>

<result>9/20 = around 0.45</result>