Uncle Yang’s family planted 550 poplar saplings last spring, and 22 died. What is the death rate?
杨大伯家去年春天种了550棵杨树苗，死亡了22棵，死亡率是多少
<gadget id="calculator">22 / 550</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">100 / 100</gadget>
<output>1</output>

<gadget id="calculator">(1/25) * 1</gadget>
<output>1/25 = around 0.04</output>

<result>1/25 = around 0.04</result>