Các câu hỏi tương tự
Tính nhanh
A = \(\frac{3}{7}\)x \(\frac{9}{26}\)- \(\frac{1}{14}\)x \(\frac{1}{13}\) - \(\frac{1}{7}\)
Mai mk cần rồi nhanh lên
\(\frac{3}{7}.\frac{9}{26}-\frac{1}{14}.\frac{1}{13}-\frac{1}{7}\)
tính nhanh \(-\frac{3}{4}.\frac{14}{25}-\frac{3}{4}.\frac{11}{25}\) ; \(\frac{3}{7}.\frac{9}{26}-\frac{1}{14}.\frac{1}{13}\) ; \(\frac{15}{19}.\left(3\frac{4}{5}.5\frac{1}{3}+4\frac{2}{3}.3\frac{4}{5}\right)\)
TÍNH HỢP LÍ
\(\frac{3}{7}\times\frac{9}{26}-\frac{1}{14}\times\frac{1}{13}\)
GIÚP MÌNH NGAY NHÉ!
tính nhanh
a, \(\frac{7}{12}.\frac{6}{11}+\frac{7}{12}.\frac{5}{11}-2\frac{7}{12}\)
b,\(\frac{-5}{9}.\frac{-6}{13}+\frac{5}{-9}.\frac{-5}{13}-\frac{5}{9}\)
c,\(0,8.\frac{-15}{14}-\frac{4}{5}.\frac{13}{14}-1\frac{2}{5}\)
d, \(75\%.\frac{6}{7}+5\%.\frac{6}{7}+\frac{7}{10}.1\frac{1}{7}\)
tính nhanh
a, \(\frac{7}{12}.\frac{6}{11}+\frac{7}{12}.\frac{5}{11}-2\frac{7}{12}\)
b,\(\frac{-5}{9}.\frac{-6}{13}+\frac{5}{-9}.\frac{-5}{13}-\frac{5}{9}\)
c, \(0,8.\frac{-15}{14}-\frac{4}{5}.\frac{13}{14}-1\frac{2}{5}\)
d,\(75\%.\frac{6}{7}+5\%.\frac{6}{7}+\frac{7}{10}.1\frac{1}{7}\)
Tính nhanh :
\(\frac{-3}{7}+\frac{15}{26}-\left(\frac{2}{13}-\frac{3}{7}\right)\)
\(2.\frac{3}{7}+\left(\frac{2}{9}-1\frac{3}{7}\right)-\frac{5}{3}:\frac{1}{9}\)
\(\frac{-11}{23}.\frac{6}{7}+\frac{8}{7}.\frac{-11}{23}-\frac{1}{23}\)
\(\left(\frac{377}{-231}-\frac{123}{89}+\frac{34}{791}\right).\left(\frac{1}{6}-\frac{1}{8}-\frac{1}{24}\right)\)
Tính nhanh
a, \(\frac{7}{12}.\frac{6}{11}+\frac{7}{12}.\frac{5}{11}-2\frac{7}{12}\)
b, \(\frac{-5}{9}.\frac{-6}{13}+\frac{5}{-9}.\frac{-5}{13}-\frac{5}{9}\)
c, \(0,8.\frac{-15}{14}-\frac{4}{5}.\frac{13}{14}-1\frac{2}{5}\)
d, 75 o/o .\(.\frac{6}{7}+5\%.\frac{6}{7}+\frac{7}{10}.1\frac{1}{7}\)
thực hiện phép tính 1 cánh hợp lí:
\(\frac{-5}{7}.\frac{3}{26}+\frac{5}{13}.\frac{\left(-23\right)}{14}-\frac{2}{7}\)