\(\frac{11}{6}-\left(0,04.4,5+0,06.18,\left(6\right)\right)=\frac{11}{6}-0,04.4,5-0,06.\frac{56}{3}=\frac{11}{6}-\frac{9}{50}-\frac{28}{25}=\frac{8}{15}\)
\(\frac{11}{6}-\left(0,04.4,5+0,06.18,\left(6\right)\right)=\frac{11}{6}-0,04.4,5-0,06.\frac{56}{3}=\frac{11}{6}-\frac{9}{50}-\frac{28}{25}=\frac{8}{15}\)
Cho biểu thức sau :
A = \(\frac{\left(a\times1,7\right)+\left(a\times18\right)}{2,5\times26\times a+2,7-2,8}\div\frac{4,1+4,2-b\times4,5\times4,6}{\left(b\times33\right)-\left(b\times3,2\right)}+\left(b-a\right)\)
Hãy tìm a và b sao cho biểu thức có kết quả lớn nhất .
cho \(A=\frac{\left(85\frac{7}{30}-85\frac{5}{18}\right)-2\frac{2}{5}}{0,04}\).Tính 12,5% của A
cho \(B=\frac{\left(6\frac{3}{5}-3\frac{3}{14}\right)\cdot5\frac{5}{6}}{\left(21-1,25\right):2,5}\).Tính 5% của B
\(\left[18\frac{1}{6}-\left(0,06\div7\frac{1}{2}+3\frac{2}{5}\times0,38\right)\right]\div\left(19-2\frac{2}{3}\times4\frac{3}{4}\right)\)
Bài 1: Tính
\(\left[18\frac{1}{6}-\left(0,06:7\frac{1}{2}+3\frac{2}{3}.0,38\right)\right]:\left(19-2\frac{2}{3}.4\frac{3}{4}\right)\)
Bài 2: Tìm x
\(\frac{-15}{12}.x+\frac{3}{7}=\frac{6}{5}.x-\frac{1}{2}\)
a) Tính \(\frac{1}{2}\)của \(A\) biết rằng \(A=\frac{\left(85\frac{37}{30}-83\frac{5}{18}\right):2\frac{2}{3}}{0,04}\)
b) Tính \(12,5\%\) của \(B\)biết \(B=\frac{\left(6\frac{3}{5}-3\frac{3}{14}\right).5\frac{5}{6}}{\left(21-1,25\right):2,5}\)
Tính B=\(\frac{\left(\frac{2}{3}\right)^3.\left(\frac{-3}{4}\right)^2.\left(-1\right)^5}{\left(\frac{2}{5}\right)^2.\left(\frac{5}{12}\right)^2}-\frac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
giúp mình giải chi tiết nha các bạn mai mình phải nộp rồi
Tìm x biết: \(\left(\frac{2}{11\times13}+\frac{2}{13\times15}+...+\frac{2}{19\times21}\right)462-\left[0,04\div\left(x+1,05\right)\right]\div0,12=19\)
Tính nhanh:
a) \(2.\frac{3}{7}+\left(\frac{2}{9}-1\frac{3}{7}\right)-\frac{5}{3}:\frac{1}{9}\)
b) \(\frac{-11}{23}.\frac{6}{7}+\frac{8}{7}.\frac{-11}{23}-\frac{1}{23}\)
c )\(\left(\frac{377}{-231}-\frac{123}{89}+\frac{34}{791}\right).\left(\frac{1}{6}-\frac{1}{8}-\frac{1}{24}\right)\)
d) \(19\frac{5}{8}:\frac{7}{12}-15\frac{1}{4}:\frac{7}{12}\)
e) \(\frac{2}{5}.\frac{1}{3}-\frac{2}{15}:\frac{1}{5}+\frac{3}{5}.\frac{1}{3}\)
Tính
a)\(\frac{5}{6}\)+\(6\frac{5}{6}\).(\(11\frac{94}{1591}-6\frac{38}{1517}\)):\(8\frac{11}{43}\)
b) \(1\frac{1}{6}+6\frac{5}{6}.\left(10\frac{133}{2173}-5\frac{23}{1643}\right):41\frac{12}{31}\)
c)\(\frac{0,8:\left(\frac{4}{5}.1,25\right)}{0,64-\frac{1}{25}}+\frac{\left(1,08-\frac{2}{25}\right):\frac{4}{7}}{\left(6\frac{5}{9}-3\frac{1}{4}\right).2\frac{2}{17}}-\left(1,2.0,5\right):\frac{4}{5}\)