Thực hiện phép tính:
\(a) \ \frac{2}{5}+ \frac{3}{4}- \frac{1}{10} \)
\(b) \ \frac{3}{7}.19 \frac{1}{3}- \frac{3}{7}.12 \frac{1}{3}+{{ \left( \frac{1}{2} \right)}^{2}} \)
\(c) \ \sqrt{25}-3. \sqrt{ \frac{1}{4}}+ \left| - \frac{3}{2} \right| \)
A.a) \(\frac{21}{20}\)
b) \(\frac{3}{4}\)
c) \(5\)
B.a) \(\frac{21}{20}\)
b) \(\frac{13}{4}\)
c) \(5\)
C.a) \(\frac{21}{20}\)
b) \(\frac{13}{2}\)
c) \(6\)
D.a) \(\frac{1}{20}\)
b) \(\frac{3}{4}\)
c) \(5\)
\(a) \ \frac{2}{5}+ \frac{3}{4}- \frac{1}{10} \)
\(b) \ \frac{3}{7}.19 \frac{1}{3}- \frac{3}{7}.12 \frac{1}{3}+{{ \left( \frac{1}{2} \right)}^{2}} \)
\(c) \ \sqrt{25}-3. \sqrt{ \frac{1}{4}}+ \left| - \frac{3}{2} \right| \)
A.a) \(\frac{21}{20}\)
b) \(\frac{3}{4}\)
c) \(5\)
B.a) \(\frac{21}{20}\)
b) \(\frac{13}{4}\)
c) \(5\)
C.a) \(\frac{21}{20}\)
b) \(\frac{13}{2}\)
c) \(6\)
D.a) \(\frac{1}{20}\)
b) \(\frac{3}{4}\)
c) \(5\)
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