In the environmental protection activity, the fifth grade collected (3/5) tons of garbage, which was less than the sixth grade (1/8) tons. How many tons of garbage are collected in the sixth grade?
环保行中，五年级清运垃圾(3/5)吨，比六年级少清运(1/8)吨．六年级清运垃圾多少吨．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

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

<gadget id="calculator">(3/5) + (1/8)</gadget>
<output>29/40 = around 0.725</output>

<result>29/40 = around 0.725</result>