How many red balls and green balls are there? It is known that the number of red balls is 3/8 that of green balls. How many percent are red balls less than green balls?
红球和绿球若干，已知红球的个数是绿球的(3/8)，红球比绿球少百分之几？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>