A batch of fruits is shipped from the fruit shop, and (1/9) of the batch of fruits are sold on the first day, how many are left unsold.
水果店运来一批水果，第一天卖出这批水果的(1/9)，还剩多少没卖．
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1 - (1/9)</gadget>
<output>8/9 = around 0.888889</output>

<result>8/9 = around 0.888889</result>