The ratio of the number of black rabbits to the number of white rabbits in the breeding group is 4:3, how much more black rabbits than white rabbits
饲养小组黑兔只数与白兔只数的比是4：3，黑兔比白兔多多少
<gadget id="calculator">4 - 3</gadget>
<output>1</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<result>1/3 = around 0.333333</result>