Xiaoming’s family used 28 tons of water in November, saving (1/8) compared to October. How many tons of water was saved in November? (solution by equation)
小明家十一月份用水28吨，比十月份节约(1/8)，十一月份节约用水多少吨？(用方程解)
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">28 / (7/8)</gadget>
<output>32</output>

<gadget id="calculator">32 - 28</gadget>
<output>4</output>

<result>4</result>