Question

Thực hiện phép tính sau :

A=\(\frac{\left(\frac{15}{6.16}+\frac{15}{16.26}+\frac{15}{26.36}\right)}{\frac{33}{6.16}-\frac{63}{16.26}+\frac{93}{26.36}}\)

Answer 1

Ta có:\(A=\frac{\frac{15}{6.16}+\frac{15}{16.26}+\frac{15}{26.36}}{\frac{33}{6.16}+\frac{63}{16.26}+\frac{93}{26.36}}\)

=>\(A=\frac{\left(\frac{1}{6.16}+\frac{1}{16.26}+\frac{1}{26.36}\right).15}{\frac{33}{6.16}+\frac{\frac{21}{11}.33}{16.26}+\frac{\frac{31}{11}.33}{26.36}}\)

=>\(A=\frac{\left(\frac{1}{6.16}+\frac{1}{16.26}+\frac{1}{26.36}\right).15}{\frac{21}{11}.\frac{31}{11}.33.\left(\frac{1}{6.16}+\frac{1}{16.26}+\frac{1}{26.36}\right)}\)

=>\(A=\frac{15}{\frac{21}{11}.\frac{31}{11}.33}\)

=>\(A=\frac{15}{\frac{1953}{11}}\)

=>\(A=\frac{55}{651}\)

Vậy \(A=\frac{55}{651}\)