Question

quy đồng mẫu  số 

\(\dfrac{7}{12}\) và \(\dfrac{11}{18}\)

Answer 1

MSC : \(36\)

\(\dfrac{7}{12}=\dfrac{7.3}{12.3}=\dfrac{21}{36}\\ \dfrac{11}{18}=\dfrac{11.2}{18.2}=\dfrac{22}{36}\)

Answer 2

\(\dfrac{21}{36}và\dfrac{22}{36}\)

Answer 3

Mẫu số chung: \(36\)

\(\dfrac{7}{12}=\dfrac{7\times3}{12\times3}=\dfrac{21}{36};\dfrac{11}{18}=\dfrac{11\times2}{18\times2}=\dfrac{22}{36}\)