What is (3/8) of 56m**2 m**2.
56m**2的(3/8)是多少m**2．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">56 * (3/8)</gadget>
<output>21</output>

<result>21</result>