Wang Gang bought back a piece of cloth, which was 2.4 meters long after shrinking, and the shrinkage rate was 4%. How much rice cloth did he buy back?
王刚买回一段布，缩水后长2.4米，缩水率为4%，他买回来多少米布．
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">1 - (1/25)</gadget>
<output>24/25 = around 0.96</output>

<gadget id="calculator">2.4 / (24/25)</gadget>
<output>2.5</output>

<result>2.5</result>