The store sells 15 TV sets and 7 washing machines. What fraction of the number of TV sets sold are washing machines?
商店卖出15台电视机，7台洗衣机．卖出的电视机的台数是洗衣机的几分之几？
<gadget id="calculator">15 / 7</gadget>
<output>15/7 = around 2.142857</output>

<result>15/7 = around 2.142857</result>