After the banded fractions A(2/3), B(5/6), and C(7/8) are converted into the simplest improper fractions, the numerators of the three fractions are exactly equal. It is known that A. B． C is less than 10, then A+B+C=how much.
带分数A(2/3)、B(5/6)、C(7/8)分别化成最简假分数后，三个分数的分子恰好相等，已知A．B．C都小于10，则A+B+C=多少．
<gadget id="calculator">7 + 3 + 2</gadget>
<output>12</output>

<result>12</result>