The price of electricity for residents in a city is 0.52 yuan per kWh. Fangfang’s family paid 23.4 yuan for electricity last month. How many kWh did they use? (Solution of column 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23.4元，用电多少千瓦时？(列方程解)
<gadget id="calculator">23.4 / 0.52</gadget>
<output>45</output>

<result>45</result>