Tính: \(\frac{2}{3} - \frac{{ - 3}}{7}\)
\(\frac{5}{{21}}\)
\(\frac{2}{7}\)
\(\frac{{23}}{{21}}\)
\(\frac{{-23}}{{21}}\)
0
\(\frac{4}{9}\)
\(\begin{array}{l}\frac{{ - 4}}{3}\\\end{array}\)
\(\frac{{ - 68}}{{75}}\)
\(\frac{{194}}{{45}}\)
\(3\frac{3}{5}\)
\(\frac{{ - 14}}{5}\)
\(\frac{{ - 85}}{{59}}\)
6,8
17052,8
0
68
Tính: \(\frac{{\frac{3}{{11}} + \frac{3}{{17}} - \frac{3}{{23}} + \frac{3}{{29}}}}{{\frac{7}{{11}} + \frac{7}{{17}} - \frac{7}{{23}} + \frac{7}{{29}}}}\)
\(\frac{7}{3}\)
\(\frac{{ - 3}}{7}\)
\(\frac{3}{7}\)
\(\frac{{ - 7}}{3}\)
Tính: \((\frac{1}{3} - 1).(\frac{1}{4} - 1)....(\frac{1}{{2022}} - 1)\)
\(\frac{3}{{2022}}\)
-\(\frac{3}{{2022}}\)
-\(\frac{1}{{1011}}\)
\(\frac{1}{{1011}}\)