(1/3) times of a number is equal to (5/7) of 14, what is this number?
一个数的(1/3)倍与14的(5/7)相等，这个数是多少？
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(5/7) / (1/3)</gadget>
<output>15/7 = around 2.142857</output>

<gadget id="calculator">14 * (15/7)</gadget>
<output>30</output>

<result>30</result>