Question

 

\(\frac{3}{54}+\frac{5}{126}+\frac{7}{294}+\frac{8}{609}\)

Answer 1

\(\frac{3}{54}+\frac{5}{126}+\frac{7}{294}+\frac{8}{609}\) 

\(=\frac{3}{6.9}+\frac{5}{9.14}+\frac{7}{14.21}+\frac{8}{21.29}\) 

\(=\frac{1}{6}-\frac{1}{9}+\frac{1}{9}-\frac{1}{14}+\frac{1}{14}-\frac{1}{21}+\frac{1}{21}-\frac{1}{29}\)

\(=\frac{1}{6}-\frac{1}{29}=\frac{23}{174}\)

Answer 2

lm ơn giúp mk nha

làm xong mk tk cho

Answer 3

                                                              23  /  1083

Answer 4

\(\frac{3}{54}+\frac{5}{126}+\frac{7}{294}+\frac{8}{609}\)

\(=\frac{3}{6.9}+\frac{5}{9.14}+\frac{7}{14.21}+\frac{8}{21.29}\)

\(=\frac{1}{6}-\frac{1}{9}+\frac{1}{9}-\frac{1}{14}+\frac{1}{14}-\frac{1}{21}+\frac{1}{21}-\frac{1}{29}\)

\(=\frac{1}{6}-\frac{1}{29}\)

\(=\frac{23}{174}\)

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