Question

tính giá trị biểu thức

P = \(\left[2\frac{11}{25}-0,84.\left(6\frac{8}{9}:2\frac{7}{12}-\frac{5}{12}.4\frac{4}{35}\right)\right]:\left[7,605:7\frac{1}{2}+3,086\right]\)

help me !!!!!!!!!!!

Answer 1

\(\left[2\frac{11}{25}-0,84.\left(6\frac{8}{9}:2\frac{7}{12}-\frac{5}{12}.4\frac{4}{35}\right)\right]:\left[7,605:7\frac{1}{2}+3,086\right]\\ < =>\left[\frac{61}{25}-\frac{21}{25}.\left(\frac{62}{9}:\frac{31}{12}-\frac{5}{12}.\frac{144}{35}\right)\right]:\left[7,605:7,5+3,086\right]\\ < =>\left[\frac{61}{25}-\frac{21}{25}.\left(\frac{8}{3}-\frac{12}{7}\right)\right]:\left[1,014+3,086\right]\\ < =>\left[\frac{61}{25}-\frac{21}{25}.\frac{20}{21}\right]:4,1\\ < =>\left[\frac{61}{25}-\frac{4}{5}\right]:4,1\\ < =>\frac{41}{25}:4,1=0,4\)