When Xiao Ming calculated the addition of two numbers, he made a mistake and subtracted them. The result was 5.3, but the correct result should be 21.3. What is the larger of the two numbers?
小明计算两个数相加时，算错成相减，结果得5.3，正确结果应该是21.3，原来两数中较大的数是多少．
<gadget id="calculator">21.3 - 5.3</gadget>
<output>16</output>

<gadget id="calculator">1 + 1</gadget>
<output>2</output>

<gadget id="calculator">16 / 2</gadget>
<output>8</output>

<gadget id="calculator">8 + 5.3</gadget>
<output>13.3</output>

<result>13.3</result>