Question

1\(\frac{1}{3}\): 0,8 = \(\frac{2}{3}\): (0,1x)

Answer 1

Lời giải:

\(1\frac{1}{3}:0,8=\frac{2}{3}:(0,1x)\)

\(\frac{4}{3}:\frac{8}{10}=\frac{2}{3}:\frac{x}{10}\)

\(\frac{5}{3}=\frac{2}{3}:\frac{x}{10}\)

\(\frac{x}{10}=\frac{2}{3}:\frac{5}{3}=\frac{2}{5}\)

\(x=\frac{2}{5}.10=4\)

Answer 2

\(1\frac{1}{3}:0,8=\frac{2}{3}:\left(0,1x\right)\)

\(\frac{4}{3}:\frac{8}{10}=\frac{2}{3}.\frac{10}{x}\)

\(\frac{4}{3}.\frac{5}{4}=\frac{20}{3x}\)

\(\frac{5}{3}=\frac{20}{3x}\)

\(\frac{1}{x}=\frac{5}{3}.\frac{3}{20}\)

\(\frac{1}{x}=\frac{1}{4}\)

\(x=4\)