The ratio of the number of goats to sheep is 9:8, which means how much more goats than sheep
山羊和绵羊头数的比是9：8，表示山羊比绵羊多多少
<gadget id="calculator">9 - 8</gadget>
<output>1</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>