There are 300 kilograms of apples in the fruit shop. The mass of pears is 4/5 of that of apples, and the mass of pears is 6/7 of that of peaches. How many kilograms of peaches are there?
水果店有苹果300千克，梨的质量是苹果的(4/5)，梨的质量是桃子的(6/7)，桃有多少千克？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">(4/5) / (6/7)</gadget>
<output>14/15 = around 0.933333</output>

<gadget id="calculator">300 * (14/15)</gadget>
<output>280</output>

<result>280</result>