\(\frac{1}{2}\div\frac{3}{4}+\frac{1}{6}\div\frac{3}{4}\)
\(=\left(\frac{1}{2}+\frac{1}{6}\right)\div\frac{3}{4}\)
\(=\frac{2}{3}\div\frac{3}{4}\)
\(=\frac{8}{9}\)
- 1/2 : 3/4 = 2/3
- 1/6 : 3/4 = 2/9
- Vì 2/3 + 2/9 = 8/9
Nên 1/2 : 3/4 + 1/6 : 3/4 = 8/9
\(\frac{1}{2}:\frac{3}{4}+\frac{1}{6}:\frac{3}{4}=\frac{1}{2}\times\frac{4}{3}+\frac{1}{6}\times\frac{4}{3}\)
\(=\left(\frac{1}{2}+\frac{1}{6}\right)\times\frac{3}{4}=\frac{2}{3}\times\frac{3}{4}=\frac{1}{2}\)
\(\frac{1}{2}:\frac{3}{4}+\frac{1}{6}:\frac{3}{4}\)
\(=\left(\frac{1}{2}+\frac{1}{6}\right):\frac{3}{4}\)
\(=\frac{2}{3}:\frac{3}{4}\)
\(=\frac{8}{9}\)
\(\frac{1}{2}:\frac{3}{4}+\frac{1}{6}:\frac{3}{4}=\left(\frac{1}{2}+\frac{1}{6}\right):\frac{3}{4}=\frac{3+1}{6}\times\frac{4}{3}=\frac{4}{3}\times\frac{2}{3}=\frac{8}{9}\)
