Naughty used a piece of colored paper (3/4) to fold an airplane, Xiao Ming used the same piece of colored paper (3/5) to fold a pistol, how much more did Naughty use than Xiao Ming?
淘气用一张彩纸的(3/4)折了一架飞机，小明用了同样的一张彩纸的(3/5)折了一把手枪，淘气比小明多用了一张彩纸的几分之几？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/4) - (3/5)</gadget>
<output>3/20 = around 0.15</output>

<result>3/20 = around 0.15</result>