1/2+3/6+5/10+7/14+9/18+11/22
=0,5+0,5+0,5+0,5+0,5+0,5
=3
\(\frac{1}{2}+\frac{3}{6}+\frac{5}{10}+\frac{7}{14}+\frac{9}{18}+\frac{11}{22}=\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}=\frac{1}{2}.6=\frac{6}{2}=3\)
\(\frac{1}{2}+\frac{3}{6}+\frac{5}{10}+\frac{7}{14}+\frac{9}{18}+\frac{11}{22}\)
\(=\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}\)
\(=\frac{1}{2}×6\)
\(=\frac{1}{2}×\frac{6}{1}\)
\(=\frac{1×6}{2×1}\)
\(=\frac{6}{2}\)
\(=6:2\)
\(=3\)