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a)\(\frac{21}{24};\frac{28}{24};\frac{72}{24}\)
b)\(\frac{6}{12};\frac{8}{12};\frac{9}{12};\frac{60}{12}\)
#H
a)
\(\frac{5}{6}=\frac{5X4}{6X4}=\frac{20}{24}\)
\(\frac{7}{8}=\frac{7X3}{8X3}=\frac{21}{24}\)
b)
\(\frac{22}{15}=\frac{22X5}{15X5}=\frac{110}{75}\)
\(\frac{17}{25}=\frac{17X3}{25X3}=\frac{51}{75}\)
MSC= 24
\(\dfrac{5}{6}=\dfrac{5\times4}{6\times4}=\dfrac{20}{24}\\ \dfrac{9}{8}=\dfrac{9\times3}{8\times3}=\dfrac{27}{24}\)
câu 1:\(\frac{48}{12}\);\(\frac{27}{12}\)
câu 2:\(\frac{150}{240}\);\(\frac{190}{240}\)
bai....................kho......................wa.....................troi.........................thi.................lanh...............lai....................mua...................tich....................ung.....................ho..................minh....................nha.......................huhu
\(\dfrac{5}{6}=\dfrac{20}{24}\)
\(\dfrac{9}{8}=\dfrac{27}{24}\)
5/6 = 5 x 4/6 x 4 = 20/24
9/8 = 9 x 3/8 x 3 = 27/24
Tick xanh mình nhe!
Câu 1:
\(\frac{3}{8}=\frac{3x3}{8x3}=\frac{9}{24}\)
\(\frac{5}{6}=\frac{5x4}{6x4}=\frac{20}{24}\)
Câu 2:
\(\frac{5}{8}=\frac{5x3}{8x3}=\frac{15}{24}\)
\(3=\frac{72}{24}\)