The greatest common factor of the numerator and denominator of the original fraction is 18, after the reduction, we get (3/5), try to find the original fraction.
原分数的分子和分母的最大公因数是18，经过约分后得(3/5)，试求原分数．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>