A simple true fraction, the product of numerator and denominator is 120, what is the largest fraction.
一个最简真分数，分子、分母的乘积是120，这个分数最大是多少．
<gadget id="calculator">8 / 15</gadget>
<output>8/15 = around 0.533333</output>

<result>8/15 = around 0.533333</result>