In February, Xiaoming’s house used 60 kWh of electricity, saving 15 kWh compared to last month. How much was saved compared to last month?
小明家2月份用电60千瓦时，比上月节约了15千瓦时，比上月节约了多少
<gadget id="calculator">60 + 15</gadget>
<output>75</output>

<gadget id="calculator">15 / 75</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>