Question

(\(\frac{3}{10}\)+ \(\frac{1}{5}\) + \(\frac{2}{15}\) ) : 3 = ?

phep tinh day du nhe

1 tick cho ai dung nhat

Answer 1

\(\left(\frac{3}{10}+\frac{1}{5}+\frac{2}{15}\right):3\)

\(=\left(\frac{9}{30}+\frac{6}{30}+\frac{4}{30}\right):3\)

\(=\frac{19}{30}:3\)

\(=\frac{19}{30}.\frac{1}{3}\)

\(=\frac{19}{90}\)

Answer 2

\(\left(\frac{3}{10}+\frac{1}{5}+\frac{2}{15}\right):3\)

\(=\frac{19}{30}:3\)

\(=\frac{19}{30}.\frac{1}{3}\)

\(=\frac{19}{90}\)

Answer 3

\(\left(\frac{3}{10}+\frac{1}{5}+\frac{2}{15}\right):3\)

\(=\left(\frac{5}{10}+\frac{2}{15}\right):3\)

\(=\frac{19}{30}:3\)

\(=\frac{19}{30}.\frac{1}{3}\)

\(=\frac{19}{90}\)