\(\frac{1}{10}+\frac{2}{10}+\frac{3}{10}+\frac{4}{10}+\frac{5}{10}+\frac{6}{10}+\frac{7}{10}+\frac{8}{10}+\frac{9}{10}\)
kb voi mk nha
tính bằng hai cách
a) \(\left(\frac{6}{11}+\frac{5}{11}\right)x\frac{3}{7}\) b) \(\frac{3}{5}x\frac{7}{9}+\frac{3}{5}x\frac{2}{9}\)
c) \(\left(\frac{6}{7}-\frac{4}{7}\right):\frac{2}{5}\) d) \(\frac{8}{15}:\frac{2}{11}+\frac{7}{15}:\frac{2}{11}\)
giúp mik nha
bài 1 : tính phân số:
a) \(\frac{5}{7}+\frac{4}{9}=?;\frac{4}{5}-\frac{2}{3}=?;\frac{9}{11}+\frac{3}{8}=?;\frac{16}{25}-\frac{2}{5}=?\)=?
b)\(5+\frac{3}{5}=?;10-\frac{9}{16}=?;\frac{2}{3}-\left(\frac{1}{6}+\frac{1}{8}\right)=?\)
c)\(\frac{5}{7}+\frac{7}{6}=?;\frac{7}{12}+\frac{17}{18}=?;\frac{9}{8}+\frac{15}{32}=?;4+\frac{35}{45}=?\)
d)\(\frac{11}{4}-\frac{15}{16}=?;\frac{5}{6}-\frac{5}{8}=?;\frac{196}{64}-2=?;3-\frac{13}{9}=?\)
e)\(\frac{8}{5}+\frac{7}{6}+\frac{5}{9}-2=?;3-\frac{5}{6}-\frac{4}{9}+\frac{32}{24}=?\)
Tính nhanh
a) \(\frac{2}{3}\div\frac{4}{9}+\frac{1}{3}\div\frac{4}{9}=\)
b) \(\frac{9}{8}\div\frac{5}{7}-\frac{1}{8}\div\frac{5}{7}=\)
c) \(\frac{2}{5}\div\frac{7}{3}-\frac{2}{5}\div\frac{1}{3}=\)
d) \(\frac{3}{7}\div\frac{7}{3}+\frac{3}{7}\div\frac{9}{4}=\)
\(\frac{1}{5}\)*\(\frac{2}{7}\):\(\frac{1}{7}\)=???
kb vs mik nha m.n
Tính bằng cách thuận tiện
a) \(\frac{3}{5}+\frac{4}{7}+\frac{2}{5}+\frac{1}{7}+\frac{2}{7}\) b) \(\frac{4}{9}+\frac{8}{9}+\frac{12}{9}+\frac{16}{9}+........+\frac{48}{9}+\frac{52}{9}+\frac{56}{9}\)
giúp mình với ai nhanh mình thưởng cho 2 tick
tính \(\frac{1}{2}+\frac{3}{4}=?\)
\(\frac{16}{6}-\frac{7}{6}=?\)
giúp mình nha và kb với mình nhé
tính :
\(\frac{3}{5}\)+\(\frac{7}{2}\)-\(\frac{4}{7}\) ; \(\frac{4}{5}\)-\(\frac{1}{3}\)+\(\frac{3}{4}\) ; \(\frac{1}{3}\)x \(\frac{5}{7}\): \(\frac{7}{2}\) ; \(\frac{1}{2}\): \(\frac{2}{7}\)x \(\frac{4}{7}\) ; \(\frac{19}{15}\)x \(\frac{3}{7}\): \(\frac{4}{9}\) ; \(\frac{11}{3}\): \(\frac{9}{16}\):\(\frac{3}{8}\)
NHỚ LÀM CHO ĐÚNG CHÍNH SÁC CHUẨN NHA, À CÒN NỮA, ĐÂY LÀ TOÁN LỚP 4, NHỚ LÀM ĐÚNG NHA !
\(\frac{1}{1×2}+\frac{1}{2×3}\: +\frac{1}{3×4}\: +\frac{1}{4×5}+\frac{1}{5×6}\: +\frac{1}{6×7}+\frac{1}{7×8}+\frac{1}{8×9}\: =?\)