Question

Tìm x, biết :

a) \(\frac{62}{7}.x=\frac{29}{9}:\frac{3}{56}\)

b) \(\frac{1}{50}:x=\frac{1}{5}+\frac{1}{7}\)

Answer 1

a, \(\frac{62}{7}.x=\frac{29}{9}.\frac{56}{3}=\frac{1624}{27}\)

\(x=\frac{1624}{27}:\frac{62}{7}=\frac{1624}{27}.\frac{7}{62}=6\frac{662}{837}\)

b, \(\frac{1}{50}:x=\frac{7}{35}+\frac{5}{35}=\frac{12}{35}\)

\(x=\frac{12}{35}.\frac{1}{50}=\frac{6}{875}\)

 

Answer 2

\(\frac{62}{7}.x=\frac{29}{9}:\frac{3}{56}\Leftrightarrow\frac{62}{7}.x=\frac{1624}{27};x=\frac{5684}{837}\)