The latter term of a ratio is 12, and the ratio is (3/4), what is the former term of this ratio
一个比的后项是12，比值是(3/4)，这个比的前项是多少
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">12 * (3/4)</gadget>
<output>9</output>

<result>9</result>