The store shipped 4 tons of pears, which is twice (1/2) tons less than the apples. How many tons of apples are shipped? What is the column
商店运来梨4吨，比运来苹果的2倍少(1/2)吨．运来苹果多少吨？列式是多少
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">4 + (1/2)</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">(9/2) / 2</gadget>
<output>9/4 = around 2.25</output>

<result>9/4 = around 2.25</result>