The ratio of a ratio is (3/4), the latter term of the ratio is 60, what is the former term of the ratio.
一个比的比值是(3/4)，比的后项是60，比的前项是多少．
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">60 * (3/4)</gadget>
<output>45</output>

<result>45</result>