☆The ratio of white rabbits to gray rabbits in the farm is 5:2. There are 60 more white rabbits than gray rabbits. How many rabbits are raised in the farm?
☆饲养场白兔和灰兔的比是5：2，白兔比灰兔多60只，饲养场一共养了多少只兔子？
<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

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

<gadget id="calculator">(5/7) - (2/7)</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">60 / (3/7)</gadget>
<output>140</output>

<result>140</result>