\(\frac{\left(-6\right).5.\left(-15\right).\left(11\right)}{11.7.34.\left(-30\right)}\)
\(\frac{4950}{-78540}\)
\(\frac{-495}{7854}\)
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Câu 1: Thực hiện phép tính bằng cách hợp lífrac{15}{35}+frac{7}{21}+frac{19}{34}-1frac{15}{17}+frac{2}{3}left(-2right)^3.left(frac{3}{4}-0,25right):left(2frac{1}{4}-1frac{1}{6}right)16frac{2}{7}:left(-frac{3}{5}right)+28frac{2}{7}:left(-frac{3}{5}right)Câu 2: Tìm x biết2.x-frac{5}{4}frac{20}{15}1,5:0,3x:-15|2x-1|2Câu 3: Thực hiện phép tính hợp lífrac{11}{12}.frac{15}{33}+frac{11}{12}.frac{2}{22}3/3frac{1}{8}.11frac{17}{19}-3frac{1}{8}.13frac{17}{19}28frac{2}{7}:left(-frac{3}{5}right)+16frac{2}{7...
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Câu 1: Thực hiện phép tính bằng cách hợp lí
\(\frac{15}{35}+\frac{7}{21}+\frac{19}{34}-1\frac{15}{17}+\frac{2}{3}\)
\(\left(-2\right)^3.\left(\frac{3}{4}-0,25\right):\left(2\frac{1}{4}-1\frac{1}{6}\right)\)
\(16\frac{2}{7}:\left(-\frac{3}{5}\right)+28\frac{2}{7}:\left(-\frac{3}{5}\right)\)
Câu 2: Tìm x biết
\(2.x-\frac{5}{4}=\frac{20}{15}\)
\(1,5:0,3=x:-15\)
\(|2x-1|=2\)
Câu 3: Thực hiện phép tính hợp lí
\(\frac{11}{12}.\frac{15}{33}+\frac{11}{12}.\frac{2}{22}\)
\(3/3\frac{1}{8}.11\frac{17}{19}-3\frac{1}{8}.13\frac{17}{19}\)
\(28\frac{2}{7}:\left(-\frac{3}{5}\right)+16\frac{2}{7}:\left(-\frac{3}{5}\right)\)
Thực hiện phép tính :
a)\(\frac{4}{7}-\frac{1}{14}+\left|\frac{-5}{21}\right|-\frac{-3}{7}\)
b) \(\frac{11}{15}.\frac{12}{13}-\frac{7}{15}+\frac{14}{15}.\frac{11}{13}\)
c)\(\left(\frac{3}{2}\right)^2-\left[\frac{1}{2}:2-\sqrt{81}.\left(-\frac{1}{2}\right)^2\right]\)
thực hiện phép tính
\(\left(\frac{-1}{4}+\frac{7}{33}-\frac{5}{3}\right)-\left(-\frac{15}{12}+\frac{6}{11}-\frac{48}{49}\right)\)
Thực hiện phép tính:
\(\frac{1}{-77^2}.7^4\left(-11\right)^2.77^5.\left(\frac{1}{7^2}\right)^2:\left(7^3.11^6\right)\)
Thực hiện phép tính:
\(B=-\frac{1}{-77^2}.7^4\left(-11\right)^2.77^5.\left(\frac{1}{7^2}\right)^2:\left(7^3.11^6\right)\)
text{Thực hiện các phép tính sau:}Eleft[frac{193}{-17}left(frac{2}{193}-frac{3}{386}right)+frac{11}{34}right]:left[left(frac{7}{1931}+frac{11}{3862}right)frac{1931}{25}+frac{9}{2}right]Ffrac{left(frac{53}{4}-2frac{5}{27}-frac{65}{6}right)left(230+frac{1}{25}right)+46frac{3}{4}}{left(frac{24}{7}+3frac{1}{3}right):left(12frac{1}{3}-14frac{2}{7}right)}Gfrac{left(frac{-5}{7}-frac{7}{9}+frac{9}{11}-frac{11}{13}right)left(3-frac{3}{4}right)}{left(frac{10}{21}+frac{14}{27}-frac{6}{11}+frac{22}{39}right...
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\(\text{Thực hiện các phép tính sau:}\)
\(E=\left[\frac{193}{-17}\left(\frac{2}{193}-\frac{3}{386}\right)+\frac{11}{34}\right]:\left[\left(\frac{7}{1931}+\frac{11}{3862}\right)\frac{1931}{25}+\frac{9}{2}\right]\)
\(F=\frac{\left(\frac{53}{4}-2\frac{5}{27}-\frac{65}{6}\right)\left(230+\frac{1}{25}\right)+46\frac{3}{4}}{\left(\frac{24}{7}+3\frac{1}{3}\right):\left(12\frac{1}{3}-14\frac{2}{7}\right)}\)
\(G=\frac{\left(\frac{-5}{7}-\frac{7}{9}+\frac{9}{11}-\frac{11}{13}\right)\left(3-\frac{3}{4}\right)}{\left(\frac{10}{21}+\frac{14}{27}-\frac{6}{11}+\frac{22}{39}\right):\left(2-\frac{2}{3}\right)}\)
Các bạn giúp mk nha !!! Thanks ❤❤❤
a) Aleft(frac{-5}{11}right).frac{7}{15}.left(frac{11}{-5}right).left(-30right)b) Bleft(-frac{1}{6}right).left(frac{-15}{19}right).left(frac{38}{45}right)c) C left(frac{-5}{9}right).frac{3}{11}+left(frac{-13}{18}right).frac{3}{11}d) D left(2frac{2}{15}.frac{9}{17}.frac{3}{32}right):left(frac{-3}{27}right)
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a) A=\(\left(\frac{-5}{11}\right).\frac{7}{15}.\left(\frac{11}{-5}\right).\left(-30\right)\)
b) B=\(\left(-\frac{1}{6}\right).\left(\frac{-15}{19}\right).\left(\frac{38}{45}\right)\)
c) C= \(\left(\frac{-5}{9}\right).\frac{3}{11}+\left(\frac{-13}{18}\right).\frac{3}{11}\)
d) D= \(\left(2\frac{2}{15}.\frac{9}{17}.\frac{3}{32}\right):\left(\frac{-3}{27}\right)\)
Thực hiện phép tính:
a) A=\(\left(-\frac{3}{4}+\frac{2}{3}\right):\frac{5}{11}\) b)B=\(\left(-\frac{2}{3}+1\right)-\left(\frac{7}{5}-0,2\right)+\left(\frac{7}{15}-1+\frac{4}{3}\right)\)
c) C=\(\frac{^{^{2^4.2^6}}}{\left(2^5\right)^2}-\frac{2^5.15^3}{6^3.10^2}\)
1.Thực hiện phép tính:(hepl me)a)4frac{5}{9}:left(frac{-5}{7}right)+frac{49}{9}:left(frac{-5}{7}right)b)left(frac{-3}{5}+frac{4}{9}right):frac{7}{11}+left(frac{-2}{5}+frac{5}{9}right):frac{7}{11}c)left(frac{3}{4}right)^4timesleft(frac{8}{9}right)^2d)left(frac{-3}{5}right)^6timesleft(-frac{5}{3}right)^5 e)frac{8^{14}}{4^4times64^5}f)frac{9^{10}times27^7}{81^7times3^{15}}
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1.Thực hiện phép tính:(hepl me)
a)\(4\frac{5}{9}:\left(\frac{-5}{7}\right)+\frac{49}{9}:\left(\frac{-5}{7}\right)\)
b)\(\left(\frac{-3}{5}+\frac{4}{9}\right):\frac{7}{11}+\left(\frac{-2}{5}+\frac{5}{9}\right):\frac{7}{11}\)
c)\(\left(\frac{3}{4}\right)^4\times\left(\frac{8}{9}\right)^2\)
d)\(\left(\frac{-3}{5}\right)^6\times\left(-\frac{5}{3}\right)^5\)
e)\(\frac{8^{14}}{4^4\times64^5}\)
f)\(\frac{9^{10}\times27^7}{81^7\times3^{15}}\)