Mingming's family used 75 degrees of electricity in May, and paid 33.75 yuan for electricity. How much is electricity per kWh?
明明家五月份用电75度，交了33.75元电费．每度电多少钱？
<gadget id="calculator">33.75 / 75</gadget>
<output>0.45</output>

<result>0.45</result>