Question

Tính nhanh :

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

Answer 1

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

\(=\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{2}{2}\)

\(=\frac{1}{2}\times4\)

\(=2\)

Answer 2

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

= \(\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}\)

= \(\frac{1}{2}.4\)

= 2

Answer 3

\(\frac{1}{2}+\frac{2}{4}+\frac{3}{6}+\frac{4}{8}=\frac{1}{2}+\frac{1}{2}+\frac{1}{2}+\frac{1}{2}=\frac{1}{2}\cdot4=2\)

Answer 4

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

= \(\frac{1}{2}\)+\(\frac{1}{2}\)+\(\frac{1}{2}\)+\(\frac{1}{2}\)= \(\frac{4}{2}\)=2