A certain fruit shop sold (3/4) tons in the morning, and shipped (2/5) tons in the afternoon, and now there are still (17/20) tons of fruit. How many tons of fruit did the store have?
某水果店上午卖出(3/4)吨，下午运进(2/5)吨，现在还有水果(17/20)吨，店里原来有水果多少吨？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">17 / 20</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">(17/20) - (2/5)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">(3/4) + (9/20)</gadget>
<output>6/5 = around 1.2</output>

<result>6/5 = around 1.2</result>