A rope is 24 meters long, the first cut (5/8), the second cut is the first (2/5). How much rice is left?
一根绳子长24米，第一次剪去(5/8)，第二次剪去的是第一次的(2/5)．还剩下多少米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">24 * (5/8)</gadget>
<output>15</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">24 * (5/8) * (2/5)</gadget>
<output>6</output>

<gadget id="calculator">24 - 15 - 6</gadget>
<output>3</output>

<result>3</result>