7 out of 80 washing machines failed the inspection, what is the pass rate of this batch of washing machines?
80台洗衣机经检验不合格的有7台，求这批洗衣机的合格率为多少．
<gadget id="calculator">80 - 7</gadget>
<output>73</output>

<gadget id="calculator">73 / 80</gadget>
<output>73/80 = around 0.9125</output>

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

<gadget id="calculator">(73/80) * 1</gadget>
<output>73/80 = around 0.9125</output>

<result>73/80 = around 0.9125</result>