\(\frac{12^2\cdot4^{16}}{11\cdot2^{13}\cdot4^{11}-16^9}+\frac{7\cdot9+14\cdot27+21\cdot36}{21\cdot27+42\cdot81+63\cdot108}\)

A=\(\frac{\frac{15}{6\cdot16}+\frac{15}{16\cdot26}\frac{15}{26\cdot36}}{\frac{33}{6\cdot16}-\frac{63}{16\cdot26}+\frac{93}{26\cdot36}}\)

Tính giá trị của biểu thức:

\(A\)=\(\frac{4^5.4^6}{2^{21}}\); \(B=\frac{8^5+16^{13}}{4^3}\); \(C=\frac{125^{12}}{5^{13}.25^{10}}\)

\(D=\frac{81^{11}.3^{17}}{27^{10}.9^{15}}\); \(E=\frac{15.3^{11}+4.27^4}{97}\); \(F=\frac{5.2^{13}.4^{11}-16^9}{3.\left(2^{17}\right)^2}\)

\(\frac{4}{11}\)-\(\frac{12}{31}\)+\(\frac{16}{59}\)

___________________  =  \(\frac{4}{3}\)

\(\frac{3}{11}\)-\(\frac{9}{11}\)+\(\frac{12}{59}\)

giải thích vì sao các phân số bằng nhau

thực hiện phép tính

a.\(1\frac{5}{7}-\frac{9}{7}.\frac{16}{9}\)

b.\(\frac{-5}{8}:\frac{1}{4}-\frac{6}{13}.4+\frac{3}{8}\)

c.\(\left(\frac{3}{8}+\frac{-1}{4}-\frac{5}{12}\right):\frac{1}{3}\)

Tính

\(A=\frac{\frac{15}{6\cdot16}+\frac{15}{16\cdot26}+\frac{15}{26\cdot36}}{\frac{33}{6\cdot16}-\frac{63}{16\cdot26}+\frac{93}{26\cdot36}}\)

\(\frac{\frac{15}{6\cdot16}+\frac{15}{16\cdot26}+\frac{15}{26\cdot36}}{\frac{33}{6\cdot16}-\frac{63}{16\cdot26}+\frac{93}{26\cdot36}}\) tính nhẩm