The store shipped a batch of fruits, sold (1/9) of the total on the first day, and sold (3/10) of the total on the second day, what fraction is left?
商店运来一批水果，第一天卖出了总数的(1/9)，第二天卖了总数的(3/10)，还剩几分之几？
<gadget id="calculator">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">3 / 10</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">1 - (1/9) - (3/10)</gadget>
<output>53/90 = around 0.588889</output>

<result>53/90 = around 0.588889</result>