For a fraction in its simplest form, the sum of the numerator and denominator is 10. what is the true score
一个最简真分数，分子和分母的和是10．这个真分数可能是多少
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<result>3/7 = around 0.428571</result>