Question

tính nhanh : 

\(\frac{1}{2}+\frac{2}{4}+\frac{3}{6}+\frac{4}{8}+\frac{5}{10}+\frac{6}{12}=?\)

 

Answer 1

3 nha chúc bạn học tốt k cho mình nha

                                          thanks bạn

Answer 2

=3 nha 

Answer 3

\(\frac{1}{2}+\frac{2}{4}+\frac{3}{6}+\frac{4}{8}+\frac{5}{10}+\frac{6}{12}\)

\(=\left(\frac{1}{2}+\frac{2}{4}\right)+\left(\frac{3}{6}+\frac{4}{8}\right)+\left(\frac{5}{10}+\frac{6}{12}\right)\)

\(=1+1+1\)

\(=3\)

Answer 4

3

tk nhe

bye