A true fraction, if multiplied by 3, the numerator is 16 smaller than the denominator, if divided by (1/4), the denominator is 2 smaller than the numerator, what is the true fraction?
一个真分数，若乘3，分子比分母小16，若除以(1/4)，分母比分子小2，这真分数是多少．
<gadget id="calculator">18 / 70</gadget>
<output>9/35 = around 0.257143</output>

<result>9/35 = around 0.257143</result>