\(\dfrac{33}{38}:\dfrac{11}{19}=\dfrac{33\times19}{38\times11}=\dfrac{3\times1}{2\times1}=\dfrac{3}{2}\)
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VT
7 tháng 5 2022 lúc 14:55
A = \(\dfrac{28}{25}\) + \(\dfrac{9}{10}\) - \(\dfrac{11}{15}\) + \(\dfrac{13}{21}\) - \(\dfrac{15}{28}\) + \(\dfrac{17}{26}\) - ... + \(\dfrac{197}{4851}\) - \(\dfrac{199}{4950}\)
Tính nhanh:
$\dfrac{11}{17}$ x ( $\dfrac{38}{45}$ x $\dfrac{17}{11}$
Tính bằng cách thuận tiện nhất
\(\dfrac{13}{18}\) x \(\dfrac{9}{26}\) x \(\dfrac{2}{3}\) =
\(\dfrac{44}{15}\) x \(\dfrac{5}{22}\) x \(\dfrac{3}{2}\) =
tính:
\(2\dfrac{3}{13}\) x \(\dfrac{26}{58}\) x 4 x \(2\dfrac{15}{24}\) x \(\dfrac{8}{21}\)
tính:
\(2\dfrac{3}{13}\) x \(\dfrac{26}{58}\) x 4 x \(2\dfrac{15}{24}\) x \(\dfrac{8}{21}\)
\(\dfrac{21}{24}\)x\(\dfrac{2}{11}\):\(\dfrac{9}{8}\)=.......
\(\dfrac{17}{9}\)x\(\dfrac{5}{6}\):\(\dfrac{12}{13}\)=.......
LN
26 tháng 4 2023 lúc 19:24
Tính NHANH
\(\dfrac{5}{14}\) + \(\dfrac{7}{13}\) + \(\dfrac{26}{25}\)
Tính:
a) \(\dfrac{7}{19}+\dfrac{12}{19}\)
b) \(\dfrac{5}{13}+\dfrac{4}{13}\)
c) \(\dfrac{24}{11}-\dfrac{13}{11}\)
d) \(\dfrac{35}{8}-\dfrac{19}{8}\)
GIÚP MK VỚI HOM NAY MÌNH NÔP RÙI
a)dfrac{7}{8}xdfrac{3}{13}+dfrac{4}{9}xdfrac{4}{13}b)dfrac{6}{5}+dfrac{7}{3}+dfrac{8}{9}c)23: dfrac{5}{14}+dfrac{6}{7}+dfrac{4}{9}d)4dfrac{1}{4}+7dfrac{3}{7}-2dfrac{4}{17}e)8-(9dfrac{2}{11}+dfrac{8}{33})
Đọc tiếp
a)\(\dfrac{7}{8}\)x\(\dfrac{3}{13}\)+\(\dfrac{4}{9}\)x\(\dfrac{4}{13}\)
b)\(\dfrac{6}{5}\)+\(\dfrac{7}{3}\)+\(\dfrac{8}{9}\)
c)23: \(\dfrac{5}{14}\)+\(\dfrac{6}{7}\)+\(\dfrac{4}{9}\)
d)\(4\dfrac{1}{4}\)+\(7\dfrac{3}{7}\)-\(2\dfrac{4}{17}\)
e)8-(9\(\dfrac{2}{11}\)+\(\dfrac{8}{33}\))