The unit price ratio of jacket and skirt is 5:3, a skirt is 45 yuan, how much is a jacket.
上衣与裙子的单价之比是5：3，一条裙子45元，一件上衣是多少元．
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">45 * (5/3)</gadget>
<output>75</output>

<result>75</result>