Các câu hỏi tương tự
Thực hiện phép tính:
b) \(\left(\dfrac{-5}{24}+0,75+\dfrac{7}{12}\right):\left(-2\dfrac{1}{4}\right)\)
Cho: \(\dfrac{a}{(b)^{2}} = \dfrac{b^{2}}{(c)^{3}} = \dfrac{c^{3}}{(a)^{4}}\)
Tính P =\((1 + \dfrac{a}{b}).(1+\dfrac{b}{c}).(1+\dfrac{c}{a})\)
Giúp mk với mk đg cần gấp
Thực hiện phép tính: a) (6dfrac{4}{9} + 3 dfrac{7}{11}) - 4dfrac{4}{9} b) dfrac{1}{7}. dfrac{1}{5} + dfrac{1}{7} . dfrac{2}{5} + dfrac{1}{7} .dfrac{4}{5}c) 25% - 1dfrac{1}{2} . (-2019)o + 0,5 . dfrac{12}{5}
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Thực hiện phép tính: a) (6\(\dfrac{4}{9}\) + 3 \(\dfrac{7}{11}\)) - 4\(\dfrac{4}{9}\) b) \(\dfrac{1}{7}\). \(\dfrac{1}{5}\) + \(\dfrac{1}{7}\) . \(\dfrac{2}{5}\) + \(\dfrac{1}{7}\) .\(\dfrac{4}{5}\)
c) 25% - 1\(\dfrac{1}{2}\) . (-2019)o + 0,5 . \(\dfrac{12}{5}\)
Bài 1: Thực hiện phép tínha, dfrac{1}{6}+dfrac{7}{3}-dfrac{1}{2} b,(-1dfrac{5}{8})+1,25:(1-dfrac{9}{4}) c, dfrac{-3}{8}.dfrac{2}{5}+dfrac{-3}{8}.dfrac{14}{5} d,(dfrac{1}{4}+dfrac{11}{9}):dfrac{34}{5}+(dfrac{-2}{9}+dfrac{29}{4}):dfrac{34}{5}
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Bài 1: Thực hiện phép tính
a, \(\dfrac{1}{6}\)+\(\dfrac{7}{3}\)-\(\dfrac{1}{2}\) b,(-1\(\dfrac{5}{8}\))+1,25:(1-\(\dfrac{9}{4}\)) c, \(\dfrac{-3}{8}\).\(\dfrac{2}{5}\)+\(\dfrac{-3}{8}\).\(\dfrac{14}{5}\) d,(\(\dfrac{1}{4}\)+\(\dfrac{11}{9}\)):\(\dfrac{34}{5}\)+(\(\dfrac{-2}{9}\)+\(\dfrac{29}{4}\)):\(\dfrac{34}{5}\)
Thực hiện phép tính: a) \(11\dfrac{3}{4}-\left(6\dfrac{5}{6}-4\dfrac{1}{2}\right)+1\dfrac{2}{3}\)
b) \(2\dfrac{17}{20}-1\dfrac{11}{15}+6\dfrac{9}{20}:3\) c) \(4\dfrac{3}{7}:\left(\dfrac{7}{5}.4\dfrac{3}{7}\right)\)
d) \(\left(3\dfrac{2}{9}.\dfrac{15}{23}.1\dfrac{7}{29}\right):\dfrac{5}{23}\)
Thực hiện phép tính:1, left(dfrac{-1}{2}right)^2.left|+8right|-left(-dfrac{1}{2}right)^3:left|-dfrac{1}{16}right|2, left|-0,25right|-left(-dfrac{3}{2}right)^2:dfrac{1}{4}+dfrac{3}{4}.2017^03, left|dfrac{2}{3}-dfrac{5}{6}right|.left(3,6:2dfrac{2}{5}right)^34, left|left(-0,5right)^2+dfrac{7}{2}right|.10-left(dfrac{29}{30}-dfrac{7}{15}right):left(-dfrac{2017}{2018}right)^05, dfrac{8}{3}+left(3-dfrac{1}{2}right)^2-left|dfrac{-7}{3}right|
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Thực hiện phép tính:
1, \(\left(\dfrac{-1}{2}\right)^2.\left|+8\right|-\left(-\dfrac{1}{2}\right)^3:\left|-\dfrac{1}{16}\right|\)
2, \(\left|-0,25\right|-\left(-\dfrac{3}{2}\right)^2:\dfrac{1}{4}+\dfrac{3}{4}.2017^0\)
3, \(\left|\dfrac{2}{3}-\dfrac{5}{6}\right|.\left(3,6:2\dfrac{2}{5}\right)^3\)
4, \(\left|\left(-0,5\right)^2+\dfrac{7}{2}\right|.10-\left(\dfrac{29}{30}-\dfrac{7}{15}\right):\left(-\dfrac{2017}{2018}\right)^0\)
5, \(\dfrac{8}{3}+\left(3-\dfrac{1}{2}\right)^2-\left|\dfrac{-7}{3}\right|\)
Thực hiện các phép tính:
j) \(\dfrac{2}{5.7}+\dfrac{2}{7.9}+...+\dfrac{2}{53.55}\)
k) \(\dfrac{1}{2}.\dfrac{2}{3}.\dfrac{3}{4}.\dfrac{4}{5}...\dfrac{99}{100}\)
Thực hiện phép tính:
1, \(\left(\dfrac{2}{3}-1\dfrac{1}{2}\right):\dfrac{4}{3}+\dfrac{1}{2}\)
2, \(\dfrac{-5}{13}+\dfrac{2}{5}+\dfrac{-8}{13}+\dfrac{3}{5}-\dfrac{3}{7}\)
Giúp em với ạ!!!Thực hiện các phép tính:a/ dfrac{2}{3}+dfrac{1}{5}.dfrac{10}{7}b/ dfrac{7}{12}-dfrac{27}{7}.dfrac{1}{8}c/ dfrac{5}{9}.dfrac{7}{13}+dfrac{5}{9}.dfrac{9}{13}-dfrac{3}{13}.dfrac{5}{9}Em cần ngay ạ!!!
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Giúp em với ạ!!!
Thực hiện các phép tính:
a/ \(\dfrac{2}{3}\)+\(\dfrac{1}{5}\).\(\dfrac{10}{7}\)\(\)
b/ \(\dfrac{7}{12}\)-\(\dfrac{27}{7}\)\(\).\(\dfrac{1}{8}\)
c/ \(\dfrac{5}{9}\).\(\dfrac{7}{13}\)\(\)+\(\dfrac{5}{9}\).\(\dfrac{9}{13}\)-\(\dfrac{3}{13}\).\(\dfrac{5}{9}\)
Em cần ngay ạ!!!