25 tháng 12 2021 lúc 20:14
Các câu hỏi tương tự
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\(\dfrac{2}{11}\)+\(\dfrac{8}{33}\))
\(\dfrac{5}{3}\cdot\dfrac{15}{8}\cdot\dfrac{9}{8}\cdot\dfrac{5}{3}-\dfrac{5}{3}\)
\(\dfrac{5}{3}\times\dfrac{15}{8}\times\dfrac{9}{8}\times\dfrac{5}{3}-\dfrac{5}{3}\)
dfrac{1}{3}+dfrac{2}{3}dfrac{4}{5}+dfrac{5}{6}dfrac{4}{5}-dfrac{3}{5}dfrac{9}{8}-dfrac{4}{2}dfrac{8}{5}xdfrac{5}{8}dfrac{6}{7}xdfrac{4}{7}dfrac{4}{5}:dfrac{4}{5}dfrac{5}{5}:dfrac{5}{5}a,
Đọc tiếp
\(\dfrac{1}{3}+\dfrac{2}{3}=\)
\(\dfrac{4}{5}+\dfrac{5}{6}=\)
\(\dfrac{4}{5}-\dfrac{3}{5}=\)
\(\dfrac{9}{8}-\dfrac{4}{2}=\)
\(\dfrac{8}{5}x\dfrac{5}{8}=\)
\(\dfrac{6}{7}x\dfrac{4}{7}=\)
\(\dfrac{4}{5}:\dfrac{4}{5}=\)
\(\dfrac{5}{5}:\dfrac{5}{5}=\)
a,
tìm x
a) \(1\dfrac{1}{2}:x=\dfrac{1}{2}\) b)\(\dfrac{7}{9}-x=\dfrac{2}{3}\) c)\(\dfrac{8}{7}:x=\dfrac{6}{7}\) d)\(\dfrac{9}{5}-x=\dfrac{3}{7}\)
So sánh các phân số:
a,\(\dfrac{1}{5}và\dfrac{3}{5}\) b\(\dfrac{8}{21}và\dfrac{8}{9}\) c,\(\dfrac{3}{5}và1\) d,\(\dfrac{7}{5}và1\)
\(\dfrac{8\dfrac{1}{2}}{15:\dfrac{5}{17}}\) \(\dfrac{4\dfrac{4}{5}:\dfrac{4}{17}}{3\dfrac{2}{5}}\) \(\dfrac{\dfrac{28}{29}:\dfrac{4}{29}}{\dfrac{7}{9}:\dfrac{1}{9}}\) Cứu tui
a) dfrac{5}{7} + x dfrac{8}{9}b)dfrac{7}{9} : dfrac{2}{3}c)dfrac{3}{4} x x dfrac{7}{12} cứu tui bài này với các thánh ui
Đọc tiếp
a) \(\dfrac{5}{7}\) + x =\(\dfrac{8}{9}\)
b)\(\dfrac{7}{9}\) : =\(\dfrac{2}{3}\)
c)\(\dfrac{3}{4}\) x x =\(\dfrac{7}{12}\)
cứu tui bài này với các thánh ui
so sánh các hỗn số sau:
\(7\dfrac{4}{5}\) và \(9\dfrac{1}{2}\)
\(7\dfrac{1}{6}\) và \(3\dfrac{4}{5}\)
\(9\dfrac{9}{1}\) và \(5\dfrac{8}{6}\)