3/5x(2/3-1/5:3/5)
=3/4x(2/3-1/3)
=3/4x1/3=1/4
đúng 100%
\(\frac{3}{4}\cdot\left(\frac{2}{3}-\frac{1}{5}:\frac{3}{5}\right)\)
\(=\frac{3}{4}\cdot\left(\frac{2}{3}-\frac{1}{3}\right)\)
\(=\frac{3}{4}\cdot\frac{1}{3}=\frac{1}{4}\)
\(\frac{3}{4}\times\left(\frac{2}{3}-\frac{1}{5}:\frac{3}{5}\right)\)
\(=\frac{3}{4}\times\left(\frac{2}{3}-\frac{1}{5}\times\frac{5}{3}\right)\)
\(=\frac{3}{4}\times\left(\frac{2}{3}-\frac{1}{3}\right)\)
\(=\frac{3}{4}\times\frac{1}{3}\)
\(=\frac{1}{4}\)
ko có gì đâu, luôn ủng hộ mik nhá