Tính nhanh: \[ \frac{23}{25} + \frac{13}{22} + \frac{345}{563} + \frac{1231}{1123} + \frac{234}{6321} - \frac{9}{113} - \frac{234}{6321} + \frac{13}{22} - \frac{345}{1231} + \frac{23}{25} \]

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----- Nội dung ảnh -----
Tính nhanh

\[
\frac{23}{25} + \frac{13}{22} + \frac{345}{563} + \frac{1231}{1123} + \frac{234}{6321} - \frac{9}{113} - \frac{234}{6321} + \frac{13}{22} - \frac{345}{1231} + \frac{23}{25}
\]