Thực hiện phép tính
a) \(A = 139\frac{5}{7}:\frac{2}{3} - 138\frac{2}{7}:\sqrt {\frac{4}{9}} \)
b) \(B = \frac{{{{2.6}^9} - {2^5}{{.18}^4}}}{{{2^2}{{.6}^8}}}\)
c) \(C = \left| {97\frac{2}{3} - 125\frac{3}{5}} \right| + 97\frac{2}{5} - 125\frac{1}{3}\)
A.\(\begin{array}{l}a)\,\frac{{15}}{7}\\b)\,4\\c)\,0\end{array}\)
B.\(\begin{array}{l}a)\,\frac{{15}}{7}\\b)\,5\\c)\,1\end{array}\)
C.\(\begin{array}{l}a)\,\frac{{10}}{7}\\b)\,5\\c)\,0\end{array}\)
D.\(\begin{array}{l}a)\,\frac{{15}}{7}\\b)\,\frac{5}{2}\\c)\,0\end{array}\)
a) \(A = 139\frac{5}{7}:\frac{2}{3} - 138\frac{2}{7}:\sqrt {\frac{4}{9}} \)
b) \(B = \frac{{{{2.6}^9} - {2^5}{{.18}^4}}}{{{2^2}{{.6}^8}}}\)
c) \(C = \left| {97\frac{2}{3} - 125\frac{3}{5}} \right| + 97\frac{2}{5} - 125\frac{1}{3}\)
A.\(\begin{array}{l}a)\,\frac{{15}}{7}\\b)\,4\\c)\,0\end{array}\)
B.\(\begin{array}{l}a)\,\frac{{15}}{7}\\b)\,5\\c)\,1\end{array}\)
C.\(\begin{array}{l}a)\,\frac{{10}}{7}\\b)\,5\\c)\,0\end{array}\)
D.\(\begin{array}{l}a)\,\frac{{15}}{7}\\b)\,\frac{5}{2}\\c)\,0\end{array}\)
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