The ratio of the numbers A and B is 5:3, the number B is 60, what is the number A?
甲乙两数的比是5：3，乙数是60，甲数是多少．
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">(5/3) * 60</gadget>
<output>100</output>

<result>100</result>