Question

\(A=\frac{40}{31.39}+\frac{35}{39.46}+\frac{30}{46.52}+\frac{25}{52.57}\)

Thực hiện hợp lí nhé

Answer 1

 

\(A=5\left(\frac{8}{31.39}+\frac{7}{39.46}+\frac{6}{46.52}+\frac{5}{52.57}\right)=8\left(\frac{1}{31}-\frac{1}{39}+\frac{1}{39}-\frac{1}{46}+\frac{1}{46}-\frac{1}{52}+\frac{1}{52}-\frac{1}{57}\right)\)=\(8\left(\frac{1}{31}-\frac{1}{57}\right)=8\left(\frac{26}{1767}\right)=\frac{208}{1767}\)

Answer 2

208/1767

tich tớ nhé Nguyễn Trọng Đức Siu Đệp Choai

Answer 3

ket qua = 208/1767 ban nha