Có \(\frac{15.3^{11}+4.274}{9^7}=\frac{5.3.3^{11}+1096}{\left(3^2\right)^7}=\frac{5.3^{12}+1096}{3^{14}}=\frac{5.1+1096}{3^2}=\frac{5+1096}{9}=\frac{1101}{9}\)
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