\(a,\)
\(MSC:42\)
\(\dfrac{4}{7}=\dfrac{4.6}{7.6}=\dfrac{24}{42}\)
\(\dfrac{5}{6}=\dfrac{5.7}{6.7}=\dfrac{35}{42}\)
\(b,\)
\(MSC:12\)
\(\dfrac{5}{12}\) giữ nguyên
\(\dfrac{2}{3}=\dfrac{2.4}{3.4}=\dfrac{8}{12}\)
\(c,\)
\(MSC:24\)
\(\dfrac{3}{4}=\dfrac{3.6}{4.6}=\dfrac{18}{24}\)
\(\dfrac{5}{6}=\dfrac{5.4}{6.4}=\dfrac{20}{24}\)