Quy đồng mẫu số 2 phân số sau : \(\frac{5}{6}\) và \(\frac{4}{9}\)
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PK
0
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NV
0
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NM
3
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VH
5
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NM
3
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PK
0
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\(\frac{5}{6}\)=\(\frac{5.9}{6.9}\)=\(\frac{45}{54}\)
\(\frac{4}{9}\)=\(\frac{4.6}{9.6}\)=\(\frac{24}{54}\)
Trl: \(\frac{5}{6}=\frac{5x9}{6x9}=\frac{45}{54}\) \(\frac{4}{9}=\frac{4x6}{9x6}=\frac{24}{54}\)