The ratio of the numbers A and B is 3:2, the number A is 90, what is the number B
甲、乙两数的比是3：2，甲数是90，乙数是多少
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">90 / (3/2)</gadget>
<output>60</output>

<result>60</result>