Question

2/3 và 4/7 quy đồng phân số

Answer 1

\(MSC:21\\ \dfrac{2}{3}=\dfrac{2\times7}{3\times7}=\dfrac{14}{21};\dfrac{4}{7}=\dfrac{4\times3}{7\times3}=\dfrac{12}{21}\)

Answer 2

MSC: 21

\(\dfrac{2}{3}=\dfrac{14}{21}\)

\(\dfrac{4}{7}=\dfrac{12}{21}\)

Answer 3

14/21 và 12/21 nhé

Answer 4

\(\dfrac{2}{3}=\dfrac{2x7}{3x7}=\dfrac{14}{21}\)

\(\dfrac{4}{7}=\dfrac{4x3}{7x3}=\dfrac{12}{21}\)

Answer 5

\(\dfrac{2\times7}{3\times7}=\dfrac{14}{21};\dfrac{4\times3}{7\times3}=\dfrac{12}{21}\)

Answer 6

\(\dfrac{2}{3}=\dfrac{2\times7}{3\times7}=\dfrac{14}{21}\)

\(\dfrac{4}{7}=\dfrac{4\times3}{7\times3}=\dfrac{12}{21}\)