For the New Year’s Day party, Class 5 and Class 4 spent 24 yuan to buy 20 lanterns, and 5 yuan to buy 10 balloons. How much is each lantern more expensive than a balloon?
元旦联欢会，五4班购买20个灯笼用去24元，购买10个气球用去5元，每个灯笼比气球贵多少元？
<gadget id="calculator">24 / 20</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">5 / 10</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(6/5) - (1/2)</gadget>
<output>7/10 = around 0.7</output>

<result>7/10 = around 0.7</result>