Dongfeng Electricity Meter Factory produced a batch of electric meters last month. After inspection, 1225 pieces passed the test and 25 pieces failed. Find the pass rate of this batch of electric meters.
东风电表厂上个月生产一批电表，经检验，合格的有1225只，不合格的有25只，求这批电表的合格率．
<gadget id="calculator">1_225 + 25</gadget>
<output>1_250</output>

<gadget id="calculator">1_225 / 1_250</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>