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\(\frac{-11^5.13^7}{11^5.13^8}=\frac{-11^4.\left(-11\right).13^7}{11^4.11.13^7.13}=\frac{-11}{11.13}=\frac{-11}{143}\)
\(\frac{-11^5.13^7}{11^5.13^8}=\frac{\left(-1\right).11^5.13^7}{11^5.13^7.13}=\frac{-1}{13}\)
\(\frac{2^{10}.3^{10}-2^{10}.3^9}{2^9.3^{10}}=\frac{2^{10}.\left(3^{10}-3^9\right)}{2^9.3^{10}}=\frac{2^9.2.3^9.\left(3-1\right)}{2^9.3.3^9}=\frac{2.2}{3}=\frac{4}{3}\)
a, \(\frac{-11^5.13^7}{11^5.13^8}=\frac{-1}{13}\)
b, \(\frac{2^{10}.3^{10}-2^{10}.3^9}{2^9.3^{10}}=\frac{2^{10}.3^9.\left(1-3\right)}{2^9.3^{10}}=\frac{-4}{3}\)
\[\frac{{ - {{11}^5}{{.13}^7}}}{{{{11}^5}{{.13}^8}}} = \frac{{ - 1}}{{13}}\]
\(\frac{-11^5.13^7}{11^5.13^8}=-\frac{11^5.13^7}{11^5.13^7.13}=-\frac{1}{13}\)
\(\frac{\left(-11\right)^5.13^7}{11^5.13^8}=\frac{\left(-11\right)^5.13^7}{11^5.13^7}.\frac{1}{13}=-1.\frac{1}{13}=-\frac{1}{13}\)
\(\frac{-11^{5^{ }}.13^7}{11^5.13^8}\)=\(\frac{11^5.\left(-13^7\right)}{11^5.13^8}\)=\(\frac{-13^7}{13^8}\)=\(\frac{-1}{13}\)
\(\frac{-11^5.13^7}{11^5.13^8}=\frac{-11^5.13^7}{11^5.13^7.13}=\frac{1}{\left(-1\right).13}=\frac{1}{-13}\)
\(\frac{\left(-11\right)^5.13^7}{11^5.13^8}\)
\(\Leftrightarrow\frac{-1.13^7}{1.13^8}\)
\(\Leftrightarrow\frac{-1.1}{1.13}\)
\(\Leftrightarrow-\frac{1}{13}\)