The price of electricity for residents in a city is 0.52 yuan per kWh. Fangfang’s family paid 28.6 yuan for electricity last month. How many kWh did they use? (solution by equation)
某市居民用电的价格为每千瓦时0.52元．芳芳家上个月付电费28.6元，用电多少千瓦时？(用方程解)
<gadget id="calculator">28.6 / 0.52</gadget>
<output>55</output>

<result>55</result>