25 yellow flowers, 20 red flowers, how much more yellow flowers than red flowers
黄花25朵，红花20朵，黄花比红花多多少
<gadget id="calculator">25 - 20</gadget>
<output>5</output>

<gadget id="calculator">5 / 20</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>