There is 1 ton of steel, (3/8) ton was transported in the morning, and (2/8) ton was transported in the afternoon, what fraction of a ton is there now?
有1吨钢铁，上午运走了(3/8)吨，下午又运来了(2/8)吨，现在有几分之几吨？
<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">1 - (3/8)</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">2 / 8</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(5/8) + (1/4)</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>