Question

\(\frac{42}{45}:\frac{x}{7}=\frac{6}{5}\)

Answer 1

\(\frac{x}{7}\)= \(\frac{42}{45}\): \(\frac{6}{5}\)= \(\frac{7}{9}\)

x = 7 x \(\frac{7}{9}\)

x = \(\frac{49}{9}\)

Answer 2

Ta có: \(\frac{42}{45}:\frac{x}{7}=\frac{6}{5}\)

\(\Rightarrow\frac{x}{7}=\frac{42}{45}:\frac{6}{5}=\frac{7}{9}\)

=> x = 7 x 7 : 9

=> x  =   \(\frac{49}{9}\)

Vậy x = \(\frac{49}{9}\)