It costs 6 cents per kilogram of leeks. My mother bought 5 kilograms and paid 5 yuan to the salesperson. How much money did I get back?
每千克韭菜6角钱，妈妈买了5千克，付给售货员5元，找回多少钱？
<gadget id="calculator">6 / 10</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">5 * (3/5)</gadget>
<output>3</output>

<gadget id="calculator">5 - 3</gadget>
<output>2</output>

<result>2</result>