If a is a number greater than 0, then a*(2/5) and a+(2/5) are larger than a+
如果a是一个大于0的数，那么a*(2/5)和a+(2/5)比较a+多少大
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<result>2/5 = around 0.4</result>