A pile of goods is 120 tons, 45 tons are used up, what fraction of the total amount is left?
一堆货物120吨，用去了45吨，还剩总数的几分之几？
<gadget id="calculator">120 - 45</gadget>
<output>75</output>

<gadget id="calculator">75 / 120</gadget>
<output>5/8 = around 0.625</output>

<result>5/8 = around 0.625</result>