The latter term of a ratio is (5/7), and the ratio is 14. What is its former term?
一个比的后项是(5/7)，比值是14，它的前项是多少．
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">(5/7) * 14</gadget>
<output>10</output>

<result>10</result>