The store shipped back 240 kilograms of apples, and the pears shipped back were apples (3/4) and oranges (2/7), how many kilograms of oranges were shipped back?
商店运回苹果240千克，运回的梨是苹果的(3/4)，又是橘子的(2/7)，运回橘子多少千克？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">(3/4) / (2/7)</gadget>
<output>21/8 = around 2.625</output>

<gadget id="calculator">240 * (21/8)</gadget>
<output>630</output>

<result>630</result>