(5/8) of a number is equal to (4/5) of 10. Find this number?
一个数的(5/8)与10的(4/5)相等，求这个数？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) / (5/8)</gadget>
<output>32/25 = around 1.28</output>

<gadget id="calculator">10 * (32/25)</gadget>
<output>64/5 = around 12.8</output>

<result>64/5 = around 12.8</result>