`Answer:`\(A=1\frac{3}{5}+\left(3\frac{2}{5}-2\right)=\frac{8}{5}+\frac{17}{5}-2=\frac{25}{5}-2=3\)\(B=\frac{3}{7}+\left(-\frac{1}{5}+-\frac{3}{7}\right)=\frac{3}{7}-\frac{1}{5}-\frac{3}{7}=\left(\frac{3}{7}-\frac{3}{7}\right)-\frac{1}{5}=-\frac{1}{5}\)\(C=\left(6-2\frac{4}{5}\right)3\frac{1}{8}-1\frac{3}{5}:\frac{1}{4}=\frac{16}{5}.\frac{25}{8}-\frac{32}{5}=10-\frac{32}{5}=\frac{18}{5}\)\(D=\left(-\frac{5}{24}+0,75+\frac{7}{12}\right):\left(-2\frac{1}{8}\right)=\left(-\frac{5}{24}+\frac{18}{24}+\frac{14}{24}\right):-\frac{1}{4}=\frac{9}{8}.-\frac{4}{1}=-\frac{9}{2}\)\(E=-\frac{5}{7}.\frac{2}{11}+-\frac{5}{7}.\frac{9}{11}+1\frac{5}{7}=-\frac{5}{7}.\left(\frac{2}{11}+\frac{9}{11}\right)+\frac{12}{7}=-\frac{5}{7}+\frac{12}{7}=1\)\(F=\frac{6}{7}+\frac{5}{8}:5-\frac{3}{16}.\left(-2\right)^2=\frac{6}{7}+\frac{5}{40}-\frac{12}{16}=\frac{48}{56}+\frac{7}{56}-\frac{42}{56}=\frac{31}{28}\)Câu trả lời: `Answer:`\(A=1\frac{3}{5}+\left(3\frac{2}{5}-2\right)=\frac{8}{5}+\frac{17}{5}-2=\frac{25}{5}-2=3\)\(B=\frac{3}{7}+\left(-\frac{1}{5}+-\frac{3}{7}\right)=\frac{3}{7}-\frac{1}{5}-\frac{3}{7}=\left(\frac{3}{7}-\frac{3}{7}\right)-\frac{1}{5}=-\frac{1}{5}\)\(C=\left(6-2\frac{4}{5}\right)3\frac{1}{8}-1\frac{3}{5}:\frac{1}{4}=\frac{16}{5}.\frac{25}{8}-\frac{32}{5}=10-\frac{32}{5}=\frac{18}{5}\)\(D=\left(-\frac{5}{24}+0,75+\frac{7}{12}\right):\left(-2\frac{1}{8}\right)=\left(-\frac{5}{24}+\frac{18}{24}+\frac{14}{24}\right):-\frac{1}{4}=\frac{9}{8}.-\frac{4}{1}=-\frac{9}{2}\)\(E=-\frac{5}{7}.\frac{2}{11}+-\frac{5}{7}.\frac{9}{11}+1\frac{5}{7}=-\frac{5}{7}.\left(\frac{2}{11}+\frac{9}{11}\right)+\frac{12}{7}=-\frac{5}{7}+\frac{12}{7}=1\)\(F=\frac{6}{7}+\frac{5}{8}:5-\frac{3}{16}.\left(-2\right)^2=\frac{6}{7}+\frac{5}{40}-\frac{12}{16}=\frac{48}{56}+\frac{7}{56}-\frac{42}{56}=\frac{31}{28}\)

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Nguyễn Thị Bảo Anh

21 tháng 3 2022 - olm

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Yen Nhi

22 tháng 3 2022

`Answer:`

\(A=1\frac{3}{5}+\left(3\frac{2}{5}-2\right)=\frac{8}{5}+\frac{17}{5}-2=\frac{25}{5}-2=3\)

\(B=\frac{3}{7}+\left(-\frac{1}{5}+-\frac{3}{7}\right)=\frac{3}{7}-\frac{1}{5}-\frac{3}{7}=\left(\frac{3}{7}-\frac{3}{7}\right)-\frac{1}{5}=-\frac{1}{5}\)

\(C=\left(6-2\frac{4}{5}\right)3\frac{1}{8}-1\frac{3}{5}:\frac{1}{4}=\frac{16}{5}.\frac{25}{8}-\frac{32}{5}=10-\frac{32}{5}=\frac{18}{5}\)

\(D=\left(-\frac{5}{24}+0,75+\frac{7}{12}\right):\left(-2\frac{1}{8}\right)=\left(-\frac{5}{24}+\frac{18}{24}+\frac{14}{24}\right):-\frac{1}{4}=\frac{9}{8}.-\frac{4}{1}=-\frac{9}{2}\)

\(E=-\frac{5}{7}.\frac{2}{11}+-\frac{5}{7}.\frac{9}{11}+1\frac{5}{7}=-\frac{5}{7}.\left(\frac{2}{11}+\frac{9}{11}\right)+\frac{12}{7}=-\frac{5}{7}+\frac{12}{7}=1\)

\(F=\frac{6}{7}+\frac{5}{8}:5-\frac{3}{16}.\left(-2\right)^2=\frac{6}{7}+\frac{5}{40}-\frac{12}{16}=\frac{48}{56}+\frac{7}{56}-\frac{42}{56}=\frac{31}{28}\)

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