70 people is equivalent to ((())/(())) of 80 people; how many tons is (3/8) of 400 tons.
70人相当于80人的((())/(()))；400吨的(3/8)是多少吨．
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">400 * (3/8)</gadget>
<output>150</output>

<result>150</result>