There used to be (3/4) tons of rice in the school cafeteria, and after eating (1/8) tons, (2/5) tons were shipped in. How many tons of rice are there in the cafeteria now?
学校食堂原来有(3/4)吨大米，吃了(1/8)吨后又运来(2/5)吨，现在食堂里有大米多少吨？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(3/4) - (1/8)</gadget>
<output>5/8 = around 0.625</output>

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

<gadget id="calculator">(5/8) + (2/5)</gadget>
<output>41/40 = around 1.025</output>

<result>41/40 = around 1.025</result>