When the quotient of 2.7/0.7 is 3, what is the remainder
2.7/0.7的商是3时，余数是多少
<gadget id="calculator">0.7 * 3</gadget>
<output>2.1</output>

<gadget id="calculator">2.7 - 2.1</gadget>
<output>0.6</output>

<result>0.6</result>