Tomatoes cost 6 yuan per kilogram, which is (1/2) yuan less than apples per kilogram. How much is an apple per kilogram?
西红柿每千克6元，比每千克苹果少(1/2)元．每千克苹果多少元？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">6 + (1/2)</gadget>
<output>13/2 = around 6.5</output>

<result>13/2 = around 6.5</result>