In the orchard, it is planned to use (3/8) of a field to plant peach trees, (3/7) to plant pear trees, and the rest to plant apple trees. What percentage of the land is planted with apple trees?
果园里计划用一块地的(3/8)种桃树，(3/7)种梨树，剩下的种苹果树．种的苹果树占这块地的几分之几？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">1 - (3/8) - (3/7)</gadget>
<output>11/56 = around 0.196429</output>

<result>11/56 = around 0.196429</result>