A person has an orchard of 6 mu, and uses (2/3) of the mu to plant grapes, (2/3) of the remaining land to plant apples, and the rest to plant pear trees. How many acres are planted with pear trees?
某人有6亩果园，用(2/3)亩种葡萄，用剩下土地的(2/3)种苹果，其余的种梨树，种梨树多少亩？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">6 - (2/3)</gadget>
<output>16/3 = around 5.333333</output>

<gadget id="calculator">1 - (2/3)</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(16/3) * (1/3)</gadget>
<output>16/9 = around 1.777778</output>

<result>16/9 = around 1.777778</result>