The fractional unit of a fraction is (1/9), if the numerator and denominator of this fraction are enlarged by 5 times, the size of this fraction remains the same, what is its fractional unit
一个分数的分数单位是(1/9)，把这个分数的分子分母都扩大5倍，这个分数的大小不变，他的分数单位是多少
<gadget id="calculator">1 / 45</gadget>
<output>1/45 = around 0.022222</output>

<result>1/45 = around 0.022222</result>