Among the 320 machine parts produced by a workshop, 5 failed after inspection. What is the qualified rate of this batch of parts?
某车间生产的320个机器零件中，经检验，不合格的有5个，这批零件合格率是多少？
<gadget id="calculator">320 - 5</gadget>
<output>315</output>

<gadget id="calculator">315 / 320</gadget>
<output>63/64 = around 0.984375</output>

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

<gadget id="calculator">(63/64) * 1</gadget>
<output>63/64 = around 0.984375</output>

<result>63/64 = around 0.984375</result>