Warehouse A has (1/4) tons of goods, warehouse B has goods (1/2) tons, and warehouse C has less (3/5) goods than the sum of warehouses A and B. How many tons of goods does warehouse C have?
甲仓有货物(1/4)吨，乙仓有货物(1/2)吨，丙仓的货物比甲、乙两仓总和少(3/5)，丙仓有货物多少吨？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/4) + (1/2)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(3/4) * (2/5)</gadget>
<output>3/10 = around 0.3</output>

<result>3/10 = around 0.3</result>