The sum of a number and (1/8) is equivalent to 80% of (3/5). Find this number.
一个数与(1/8)的和相当于(3/5)的80%，求这个数．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(3/5) * (4/5)</gadget>
<output>12/25 = around 0.48</output>

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

<gadget id="calculator">(12/25) - (1/8)</gadget>
<output>71/200 = around 0.355</output>

<result>71/200 = around 0.355</result>