(5/8) minus (1/4) is equal to (5/12) of a number. What is this number? (solution by equation)
(5/8)减去(1/4)的差，等于一个数的(5/12)．这个数是多少？(用方程解)
<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

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

<gadget id="calculator">(5/8) - (1/4)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">(3/8) / (5/12)</gadget>
<output>9/10 = around 0.9</output>

<result>9/10 = around 0.9</result>