It costs 240 yuan for Xiao Ming to buy a set of clothes. The price ratio of jacket and trousers is 5:3. How much does it cost to buy a pair of trousers?
小明买一套服装要240元，上衣与裤子的价钱比是5：3，买一条裤子要花多少元．
<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">240 * (3/8)</gadget>
<output>90</output>

<result>90</result>