The cement factory produced 350 tons of cement in September, and the production in October was more than that in September (2/7). How many tons of cement was produced in October?
水泥厂九月份生产水泥350吨，十月份生产的比九月份多(2/7)．十月份生产水泥多少吨？
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">1 + (2/7)</gadget>
<output>9/7 = around 1.285714</output>

<gadget id="calculator">350 * (9/7)</gadget>
<output>450</output>

<result>450</result>