A pile of 5 tons of sand, use up (1/8) of it every day, how much is used in 3 days
一堆沙子5吨，每天用去它的(1/8)，3天一共用去多少
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/8) * 3</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>