If the number of ungerminated seeds accounts for 1/4 of the number of germinated seeds, what is the germination rate of this batch of seeds?
没发芽的种子数占发芽种子数的(1/4)，则这批种子的发芽率为多少．
<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) * 1</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>