Cho A=\(\frac{40}{31.38}+\frac{35}{39.46}+\frac{30}{2392}+\frac{25}{2962}\)  và B=\(\frac{91}{19.31}+\frac{65}{19.43}+\frac{39}{989}+\frac{143}{1311}\).Tìm \(\frac{A}{B}\)

Tính tổng:

E =\(\frac{40}{31.38}+\frac{35}{39.46}+\frac{30}{2392}+\frac{25}{2962}\)

F =\(\frac{91}{19.31}+\frac{65}{19.43}+\frac{39}{989}+\frac{143}{1311}\)

Tính tổng:

E =\(\frac{40}{31.38}+\frac{35}{39.46}+\frac{30}{2392}+\frac{25}{2962}\)

F =\(\frac{91}{19.31}+\frac{65}{19.43}+\frac{39}{989}+\frac{143}{1311}\)

Tính tỉ số A/B biết A= 40/31.38+35/39.46+30/2392+25/2962 và B=91/19.31+65/19.43+39/989+143/1311

tính nhanh 

A= 40/31.38 + 35/39.46 + 30/2392 + 25/2962

B= 91/19.31 + 65/19.43 + 39/989 + 143/1311

Cho A =40/31.38 + 35/39.46 + 30/2392 + 25/2962

       B=91/19.31 + 65/19.43 + 39/989 + 143/1311

Tính A/B

Cho A=40/31.38+35/39.46+30/2392+25/2962

      B=91/19.31+65/19.43+39/989+143/1311

Tính tỷ số A/B

E= 40/31.38 + 35/39.46 + 30/2392 + 25/2962

F=  91/19.31 + 65/19.43 + 39/989 + 143/1311

\(A=\frac{40}{31.39}+\frac{35}{39.16}+\frac{30}{23.92}+\frac{25}{29.64}\) ; \(B=\frac{91}{19.31}+\frac{65}{19.43}+\frac{39}{989}+\frac{143}{1311}\). 

Tính tỉ số A/B