The ratio of coal consumption in the school cafeteria between September and October is 7:8, and the coal consumption in September is (3/4) tons. How many tons of coal are used in October?
学校食堂九月份和十月份用煤量的比是7：8，九月份用煤(3/4)吨，十月份用煤多少吨？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">7 / 8</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">(3/4) / (7/8)</gadget>
<output>6/7 = around 0.857143</output>

<result>6/7 = around 0.857143</result>