The shopping mall purchased 60 kilograms of brown sugar, which was 10 kilograms more than the purchased white sugar (5/7). How many kilograms of white sugar were purchased?
商场购进红糖60千克，比购进的白糖的(5/7)多10千克，购进白糖多少千克？
<gadget id="calculator">60 - 10</gadget>
<output>50</output>

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

<gadget id="calculator">50 / (5/7)</gadget>
<output>70</output>

<result>70</result>