The fifth grade students use an 8-meter-long rope to tie up the collected waste products. (5/8) of it is used up. How many meters are left?
五年级学生用一条长8米的绳子捆扎收聚的废品，用去了它的(5/8)，还剩下多少米？
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">1 - (5/8)</gadget>
<output>3/8 = around 0.375</output>

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

<result>3</result>