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Rút gọn phân số  -11^5.13^7/11^5.13^8 

Ai dải đúng mình sẽ k

\(\frac{-1}{13}\)Kik nha

\(\frac{-11^5.13^7}{11^5.13^8}=\frac{-11^4.\left(-11\right).13^7}{11^4.11.13^7.13}=\frac{-11}{11.13}=\frac{-11}{143}\)

bằng -1/13

                                      ko tik xui nguyên năm gán chịu

\(=\frac{-1}{13}\)

\(\frac{-11^5.13^7}{11^5.13^8}=\frac{\left(-1\right).11^5.13^7}{11^5.13^7.13}=\frac{-1}{13}\)

\(\frac{2^{10}.3^{10}-2^{10}.3^9}{2^9.3^{10}}=\frac{2^{10}.\left(3^{10}-3^9\right)}{2^9.3^{10}}=\frac{2^9.2.3^9.\left(3-1\right)}{2^9.3.3^9}=\frac{2.2}{3}=\frac{4}{3}\)

a, \(\frac{-11^5.13^7}{11^5.13^8}=\frac{-1}{13}\)

b, \(\frac{2^{10}.3^{10}-2^{10}.3^9}{2^9.3^{10}}=\frac{2^{10}.3^9.\left(1-3\right)}{2^9.3^{10}}=\frac{-4}{3}\)

\[\frac{{ - {{11}^5}{{.13}^7}}}{{{{11}^5}{{.13}^8}}} = \frac{{ - 1}}{{13}}\]

\(\frac{11^5.13^7}{10^5.13^8}=\frac{11^5.13^7}{10^5.13^7.13}=\frac{11^5}{10^5.13}=\frac{11^5}{10^5}:13=\left(\frac{11}{10}\right)^5:13\)

mình chỉ rút gọn đc đến đây thui, còn lại mình ....... ko biết

\(\frac{-11^5.13^7}{11^5.13^8}=-\frac{11^5.13^7}{11^5.13^7.13}=-\frac{1}{13}\)

\(\frac{-1}{3}\)     KS NHA

= -11⁵ * 13⁷ /  11⁵ * 13⁷ * 13 = -1/13

\(\frac{\left(-11\right)^5.13^7}{11^5.13^8}=\frac{\left(-11\right)^5.13^7}{11^5.13^7}.\frac{1}{13}=-1.\frac{1}{13}=-\frac{1}{13}\)

(-11)⁵x13⁷/11⁵.13⁸=-1/13⁸

Chúc bạn học giỏi nha!!!

\(\frac{\left(-1\right).1}{1.13}=\frac{\left(-1\right)}{13}\)