\(\frac{2}{5}\times\frac{3}{5}+\frac{4}{7}:\frac{1}{3}-\frac{2}{7}\)
\(=\frac{6}{25}+\frac{12}{7}-\frac{2}{7}\)
\(=\frac{6}{25}+\frac{10}{7}\)
\(=\frac{292}{175}\)
k tớ nha
sẽ bằng số \(\frac{256}{125}\)
k nha cảm ơn
\(\frac{2}{5}.\frac{3}{5}+\frac{4}{7}:\frac{1}{3}-\frac{2}{7}\)
\(=\frac{6}{25}+\frac{12}{7}-\frac{2}{7}\)
\(=\frac{6}{25}+\frac{10}{7}\)
\(=\frac{292}{175}\)