HOC24
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Chủ đề / Chương
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A=\(\dfrac{\dfrac{1}{3}-\dfrac{1}{7}-\dfrac{1}{13}}{\dfrac{2}{3}-\dfrac{2}{7}-\dfrac{2}{13}}\)
3 + 2 : ( 1 + 3 : (2 - 1 : ( 3 + \(\dfrac{2}{1-3}\)) ) )
( \(5\dfrac{7}{8}\) - \(2\dfrac{1}{4}\) - 0,5 ) : \(2\dfrac{23}{26}\)
( \(\dfrac{3}{7}-\)\(\dfrac{2}{3}\)+5) : ( \(-25\dfrac{8}{11}\) + \(24\dfrac{4}{21}\) )
( \(\dfrac{3}{7}\) - \(\dfrac{2}{3}\) + 5 ) : ( \(-25\dfrac{8}{21}\) + \(24\dfrac{4}{21}\) )