Bài 1 hãy tính

1 . A = \(\frac{9^5.5^7}{45^7}\)

2 .B = \(\left(\frac{2^2.2^3}{4^2.16}\right)^{15}\)\(:\left(\frac{2^6}{16^2}\right)^{10}\)

3 . A= \(\frac{-5.7^5+7^4}{7^6.10-2.7^5}\)

4 . B = \(\frac{10^3+5.10^2.5^3}{-13}\)

5 . A = \(\frac{\left(-0,03\right)^7.2^8}{\left(0,6\right)^7}\)

6 . B= \(\frac{3^7.16^3}{12^5.27^2}\)

7 . A = \(\frac{2^3.\left(0,5\right)^3.3^7}{2.\left(,5\right)^4.3^8}\)

8 . B = \(\left(\frac{-1}{3}\right)^3\)\(.\left(\frac{-1}{3}\right)^2\)\(.\left(\frac{-1}{3}\right)\)

Giúp mik nhé . mik cần ngay

Tính hợp lí:

a, 75. ( \(-2\frac{3}{25}+7\frac{2}{75}-5\frac{4}{15}\) )

b, \(45.\left(5\frac{4}{15}-4\frac{7}{9}-1\frac{8}{45}\right)\)

c, \(\frac{-5}{8}+\frac{14}{18}-\frac{3}{8}+\frac{2}{9}-\frac{1}{2006}\)

d, \(\frac{15}{29}-\frac{8}{7}+\frac{16}{14}+\frac{14}{29}-\frac{3}{8}\)

e, \(\frac{1}{3.5}+\frac{1}{5.7}+...+\frac{1}{49.51}\)

tính giá trị biểu thức

\(A=\frac{-378.132+189.64}{15+18+21+......+45+48}\)

\(B=1,4.\frac{15}{14}-\left(\frac{4}{5}+\frac{2}{5}\right):2\frac{1}{5}-\frac{\frac{73}{77}+\frac{73}{165}+\frac{73}{285}}{\frac{25}{24}+\frac{15}{180}+\frac{20}{285}}\)

\(C=\frac{7+\frac{7}{12}-\frac{7}{144}+\frac{7}{60}}{5+\frac{6}{12}-\frac{5}{144}}.\frac{\frac{3}{4}-\frac{3}{16}+\frac{3}{64}-\frac{3}{256}}{1-\frac{1}{4}+\frac{1}{16}-\frac{1}{34}}-\frac{1}{20}\)