There is a batch of seeds, 70 seeds were taken for the first time, 50 seeds germinated, and 50 seeds were taken for the second time, 40 seeds germinated. What is the germination rate of this batch of seeds?
有一批种子，第一次取了70粒有50粒发芽，第二次取了50粒有40粒发芽，这批种子的发芽率是多少
<gadget id="calculator">50 + 40</gadget>
<output>90</output>

<gadget id="calculator">70 + 50</gadget>
<output>120</output>

<gadget id="calculator">90 / 120</gadget>
<output>3/4 = around 0.75</output>

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

<gadget id="calculator">(3/4) * 1</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>