A sheep in Xiaoming’s family weighed 40kg a month ago, but now it has increased by 15%. How much does it weigh now?
小明家的一只羊一月前重40㎏，现在增加了15%，现在重多少㎏．
<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 + (3/20)</gadget>
<output>23/20 = around 1.15</output>

<gadget id="calculator">40 * (23/20)</gadget>
<output>46</output>

<result>46</result>