Xiaohua's family used 240 kwh of electricity in September, saving (1/4) compared to August. How much kwh did they use in August?
小华家九月份用电240千瓦•时，比八月份节约(1/4)，八月份用电多少千瓦•时？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">240 / (3/4)</gadget>
<output>320</output>

<result>320</result>