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Question Number 80501 by naka3546 last updated on 03/Feb/20

$$\frac{5}{7}=\frac{a_2}{2!}+\frac{a_3}{3!}+\frac{a_4}{4!}+\frac{a_5}{5!}+\frac{a_6}{6!}+\frac{a_7}{7!}$$ $$0⩽a_i<i,a_i\in \mathbb{N}$$ $$Findpossiblevalueof{a}_2+a_3+a_4+a_5+a_6+a_7.$$

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