When the quotient of 5.03/0.4 is 12.5, what is its remainder?
当5.03/0.4的商是12.5时，它的余数是多少．
<gadget id="calculator">12.5 * 0.4</gadget>
<output>5</output>

<gadget id="calculator">5.03 - 5</gadget>
<output>0.03</output>

<result>0.03</result>