(2/7) of a basket of apples is exactly 20 kilograms. How much does this basket of apples weigh?
一筐苹果的(2/7)正好是20千克，这筐苹果重多少千克？
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">20 / (2/7)</gadget>
<output>70</output>

<result>70</result>