The sum of (2/3) plus (3/4) of a number is 1, what is this number?
一个数的(2/3)加上(3/4)的和是1，这个数是多少？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 - (3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(1/4) / (2/3)</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>