The ratio of the numbers A and B is 5:3, the number of A is 40, what is the number of B
甲、乙两数的比是5：3，甲数是40，乙数是多少
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">40 * (3/5)</gadget>
<output>24</output>

<result>24</result>