Question

a,3/4+2/3   b,4/5+1/2-7/10     c,7/6.1/3+7/6.1/2- 7/6.5/8   các ban giúp mình với mình cần gấp

Answer 1

TL

\(\frac{3}{4}+\frac{2}{3}=\frac{17}{12}\)

\(\frac{4}{5}+\frac{1}{2}-\frac{7}{10}=\frac{3}{5}\)

\(\frac{7}{6}\).\(\frac{1}{3}+\frac{7}{6}\).\(\frac{1}{2}\)-\(\frac{7}{6}\) . \(\frac{5}{8}\)=\(\frac{7}{6}.\)(\(\frac{1}{3}+\frac{1}{2}-\frac{5}{8}\))=\(\frac{7}{6}.\)\(\frac{5}{24}\)=\(\frac{35}{144}\)

HT