Of the 100 locks manufactured by a certain factory, 98 are of good quality, what is the good rate?
某厂制造的100把锁，有98把质量优良，优良率是多少．
<gadget id="calculator">98 / 100</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>