A worker produces 200 parts, of which 4 are unqualified, what is the pass rate
某工人生产200个零件，其中4个不合格，合格率是多少
<gadget id="calculator">200 - 4</gadget>
<output>196</output>

<gadget id="calculator">196 / 200</gadget>
<output>49/50 = around 0.98</output>

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

<gadget id="calculator">(49/50) * 1</gadget>
<output>49/50 = around 0.98</output>

<result>49/50 = around 0.98</result>