\(\frac{3}{2}\)\(+\)\(\frac{5}{2}\)\(-\)\(\frac{4}{2}\)\(=\)\(\left(\frac{3}{2}+\frac{5}{2}\right)-\frac{4}{2}\)
\(=\frac{8}{2}-\frac{4}{2}=\frac{4}{2}=2\)
\(\frac{2}{5}\)\(x\)\(\frac{1}{2}\)\(:\)\(\frac{1}{3}\)\(=\)\(\left(\frac{2}{5}x\frac{1}{2}\right)\)\(:\)\(\frac{1}{3}\)
\(=\)\(\frac{2}{10}\)\(:\)\(\frac{1}{3}\)\(=\frac{2}{10}x\frac{3}{1}\)\(=\frac{6}{10}=\frac{3}{5}\)
\(\frac{3}{2}+\frac{5}{2}-\frac{4}{2}\)
\(=\frac{3+5-4}{2}\)
\(=\frac{4}{2}\)
\(=2\)
\(\frac{2}{5}\times\frac{1}{2}:\frac{1}{3}\)
\(=\frac{2}{5}\times\frac{1}{2}\times\frac{3}{1}\)
\(=\frac{2\times1\times3}{5\times2\times1}\)
\(=\frac{6}{10}\)
\(=\frac{3}{5}\)
\(\frac{2}{9}:\frac{9}{2}\times\frac{1}{2}\)
\(=\frac{2}{9}\times\frac{2}{9}\times\frac{1}{2}\)
\(=\frac{2\times2\times1}{9\times9\times2}\)
\(=\frac{2}{81}\)
\(\left(\frac{4}{11}+\frac{3}{11}\right)\times\frac{2}{6}\)
\(=\frac{7}{11}\times\frac{2}{6}\)
\(=\frac{14}{66}\)
\(=\frac{7}{33}\)
\(\frac{3}{2}\)+ \(\frac{5}{2}\)- \(\frac{4}{2}\)= \(\frac{7}{2}\)- \(\frac{4}{2}\)= \(\frac{3}{2}\)
\(\frac{2}{5}\)x \(\frac{1}{2}\): \(\frac{1}{3}\)= \(\frac{2}{10}\)= \(\frac{1}{5}\): \(\frac{1}{3}\)= \(\frac{3}{5}\)
\(\frac{2}{9}\): \(\frac{9}{2}\)x \(\frac{1}{2}\)= \(\frac{4}{81}\)x \(\frac{1}{2}\)= \(\frac{4}{162}\)= \(\frac{2}{81}\)
( \(\frac{4}{11}\)+ \(\frac{3}{11}\)) x \(\frac{2}{6}\)= \(\frac{7}{11}\)x \(\frac{2}{6}\)= \(\frac{14}{66}\)= \(\frac{7}{33}\)
\(\frac{3}{2}+\frac{5}{2}-\frac{4}{2}\)bằng 2
\(\frac{2}{5}\cdot\frac{1}{2}:\frac{1}{3}\)bằng \(\frac{3}{5}\)
\(\frac{2}{9}:\frac{9}{2}\cdot\frac{1}{2}\)bằng \(\frac{2}{81}\)
\(\left(\frac{4}{11}+\frac{3}{11}\right)\cdot\frac{2}{6}\)bằng \(\frac{7}{33}\)
