Divide a 4-meter-long rope into 9 sections, how many meters is each section?
把4米长的绳子平均分成9段，每段长多少米．
<gadget id="calculator">4 / 9</gadget>
<output>4/9 = around 0.444444</output>

<result>4/9 = around 0.444444</result>