In order to protect Fuxian Lake, teachers and students participated in environmental protection activities. The fifth grade clears and transports (2/5) tons of lakeside garbage, which is (1/8) less than the sixth grade. How many tons of lakeside garbage did the fifth and sixth grades remove?
为保护抚仙湖，师生们参加环保活动．五年级清运湖滨垃圾(2/5)吨，比六年级少清运(1/8)吨．五六年级共清运湖滨垃圾多少吨？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

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

<gadget id="calculator">(2/5) + (1/8) + (2/5)</gadget>
<output>37/40 = around 0.925</output>

<result>37/40 = around 0.925</result>