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2023-03-17 20:36:48
\(\dfrac{7}{3}-\dfrac{5}{6}\)
\(=\dfrac{14}{6}-\dfrac{5}{6}\)
\(=\dfrac{9}{6}=\dfrac{3}{2}\)
Chúc bạn học tốt:>
2023-03-17 19:06:23
C nha
2023-03-17 16:35:59
\(\dfrac{2}{7}x\dfrac{1}{3}+\dfrac{3}{4}\)
\(=\dfrac{2}{21}+\dfrac{3}{4}\)
\(=\dfrac{8}{84}+\dfrac{63}{84}\)
\(=\dfrac{71}{84}\)
Chúc bạn học tốt:>
2023-03-16 22:19:43
x - \(\dfrac{3}{7}:\dfrac{9}{14}=\dfrac{-7}{3}\)
x - \(\dfrac{3}{7}\) = \(\dfrac{-7}{3}x\dfrac{9}{14}\)
x - \(\dfrac{3}{7}\) = \(\dfrac{-63}{42}\)
x = \(\dfrac{-63}{42}+\dfrac{3}{7}\)
x = \(\dfrac{-63}{42}+\dfrac{18}{42}\)
x = \(\dfrac{45}{42}\) = \(\dfrac{15}{14}\)
2023-03-16 19:51:55
C. \(\dfrac{5}{8}\)
2023-03-15 22:28:50
2023-03-15 22:28:50
2023-03-15 22:28:50
2023-03-15 22:28:50
2023-03-15 22:28:50