\(=-\dfrac{1}{5}\cdot\dfrac{3}{4}=-\dfrac{3}{20}\)
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Tính tổng sau đây:
a,\(\dfrac{-3}{12}\)+\(\dfrac{1}{-4}\) b,\(\dfrac{5}{12}+\dfrac{-3}{28}\) c,\(\dfrac{-7}{15}+\dfrac{3}{35}\) d,\(\dfrac{-5}{7}+\dfrac{-3}{4}\)
Giúp mk với.
Điền dấu thích hợp (>,<,=) vào chỗ trống.
a,\(\dfrac{-3}{5}+\dfrac{-11}{5}...\dfrac{-7}{3}+\dfrac{4}{7}\)
b,\(\dfrac{-7}{11}+\dfrac{-15}{11}...\dfrac{-4}{3}+\dfrac{-7}{5}\)
Giúp mk nha :>>. Mk cảm ơn.
\(\dfrac{3}{15}.\dfrac{5}{9}:\dfrac{-18}{17}.\dfrac{14}{17}\)
\(\dfrac{12}{7}.\dfrac{7}{4}+\dfrac{35}{11}:\dfrac{245}{121}\)
giúp mình với
\(\dfrac{3}{15}.\dfrac{5}{9}:\dfrac{-18}{17}.\dfrac{14}{17}\)
\(\dfrac{12}{7}.\dfrac{7}{4}+\dfrac{35}{11}:\dfrac{245}{121}\)
giúp mình với
\(\dfrac{15}{x}\)+\(\dfrac{3}{4}\)=\(\dfrac{7}{28}\)
giúp với
\(\dfrac{5}{14}.\dfrac{1}{3}.\dfrac{-4}{15}:\dfrac{5}{7}\)
giúp mik với
(x-\(\dfrac{3}{8}\))+\(\dfrac{1}{4}\)=\(\dfrac{7}{8}\)
Giúp mk với mai phải nộp rồi
1, dfrac{-5}{7} . dfrac{2}{11} + dfrac{-5}{7} . dfrac{9}{11} + 1dfrac{5}{7}
2,-3dfrac{4}{13} . 15dfrac{3}{41} + 3dfrac{4}{13} . 2dfrac{3}{41}
3, dfrac{4}{5} . 15dfrac{1}{4} - dfrac{4}{5} . 15dfrac{1}{3} + dfrac{11}{30}
4,dfrac{4}{20} + dfrac{16}{42} + dfrac{6}{15} - dfrac{3}{5} + dfrac{2}{21} - dfrac{10}{21} + dfrac{3}{10}
Giúp mik nha. Cảm ơn
Đọc tiếp
1, \(\dfrac{-5}{7}\) . \(\dfrac{2}{11}\) + \(\dfrac{-5}{7}\) . \(\dfrac{9}{11}\) + \(1\dfrac{5}{7}\)
2,\(-3\dfrac{4}{13}\) . \(15\dfrac{3}{41}\) + \(3\dfrac{4}{13}\) . \(2\dfrac{3}{41}\)
3, \(\dfrac{4}{5}\) . \(15\dfrac{1}{4}\) - \(\dfrac{4}{5}\) . \(15\dfrac{1}{3}\) + \(\dfrac{11}{30}\)
4,\(\dfrac{4}{20}\) + \(\dfrac{16}{42}\) + \(\dfrac{6}{15}\) - \(\dfrac{3}{5}\) + \(\dfrac{2}{21}\) - \(\dfrac{10}{21}\) + \(\dfrac{3}{10}\)
Giúp mik nha. Cảm ơn
Giải hộ với ạ:a) dfrac{7}{3}+dfrac{1}{2}-dfrac{-3}{70} ; b) dfrac{5}{12}-dfrac{3}{-16}+dfrac{3}{4}; c) dfrac{-1}{3}.dfrac{5}{9};d)dfrac{-3}{7}.dfrac{5}{15};e) dfrac{-15}{9}.dfrac{5}{9};g)left(-5right).dfrac{5}{11};h)dfrac{-5}{6}:dfrac{2}{7};i) -10:dfrac{2}{3}; k)dfrac{3}{5}:left(-5right); g)dfrac{9}{32}:dfrac{3}{16}; m) dfrac{10}{21}-dfrac{3}{8}.dfrac{4}{15};n) (dfrac{2}{3}+dfrac{3}{4}) . (dfrac{5}{7}+dfrac{5}{14})Giải đc mình tick cho nha (
Đọc tiếp
Giải hộ với ạ:
a) \(\dfrac{7}{3}+\dfrac{1}{2}-\dfrac{-3}{70}\) ; b) \(\dfrac{5}{12}-\dfrac{3}{-16}+\dfrac{3}{4}\); c) \(\dfrac{-1}{3}.\dfrac{5}{9}\);d)\(\dfrac{-3}{7}.\dfrac{5}{15}\);e) \(\dfrac{-15}{9}.\dfrac{5}{9}\);g)\(\left(-5\right).\dfrac{5}{11}\);h)\(\dfrac{-5}{6}:\dfrac{2}{7}\);i) \(-10:\dfrac{2}{3}\); k)\(\dfrac{3}{5}:\left(-5\right)\); g)\(\dfrac{9}{32}:\dfrac{3}{16}\); m) \(\dfrac{10}{21}-\dfrac{3}{8}.\dfrac{4}{15}\);n) (\(\dfrac{2}{3}+\dfrac{3}{4}\)) . (\(\dfrac{5}{7}+\dfrac{5}{14}\))
Giải đc mình tick cho nha =(