Các câu hỏi tương tự
Tính:
A = \(5\frac{3}{7}+\left(-5,35\right)+\frac{1}{3}+\left(-2,41\right)+\frac{3}{21}+\left(-1,24\right)\)
B = \(4\frac{25}{16}+25.\left(\frac{9}{16}-\frac{117}{64}\right):\frac{27}{8}\)
Mấy dấu gạch không phải là trị tuyệt đối đâu mà khi mình ghi thì nó có sẵn
Trình bày cách giải và đáp án giúp mình nha! ^^
Tính nhanh
\(A=5\frac{3}{7}+\left(-5,35\right)+\frac{1}{3}+\left(-2,41\right)+\frac{3}{21}+\left(-1,24\right)\)
Tính hợp lý :
\(5\frac{3}{7}+\left(-5,35\right)+\frac{1}{3}+\left(-2,41\right)+\frac{3}{21}+\left(-1,24\right)\)
Tính A=\(5\frac{3}{7}+\left(-5,35\right)+\frac{1}{3}+\left(-2,41\right)+3,21+\left(-1,24\right)\)
\(4\frac{25}{16}+25.\left(\frac{9}{16}-\frac{117}{64}\right):\frac{27}{8}\)
12)0,2.frac{15}{36}-left(frac{2}{5}+frac{2}{3}right):1frac{1}{5}13)1frac{13}{15}.0,75-left(frac{8}{15}+0,25right).frac{24}{27}16)frac{1}{2}+frac{3}{4}-left(frac{3}{4}-frac{4}{5}right).left(-2,75right)18)left(frac{7}{8}-frac{3}{4}right).1frac{1}{3}-frac{2}{7}.left(3.5right)^222)1frac{13}{15}.0,75-left(frac{11}{20}+25%right):frac{7}{3}23)frac{left(frac{2}{3}-0,75right).left(0,2-frac{2}{5}right)}{frac{5}{9}-1frac{1}{12}}33)left(25%+frac{1}{3}+0,75right):left(4frac{3}{4}-3frac{1}{2}right)35)left(fra...
Đọc tiếp
12)\(0,2.\frac{15}{36}-\left(\frac{2}{5}+\frac{2}{3}\right):1\frac{1}{5}\)
13)\(1\frac{13}{15}.0,75-\left(\frac{8}{15}+0,25\right).\frac{24}{27}\)
16)\(\frac{1}{2}+\frac{3}{4}-\left(\frac{3}{4}-\frac{4}{5}\right).\left(-2,75\right)\)
18)\(\left(\frac{7}{8}-\frac{3}{4}\right).1\frac{1}{3}-\frac{2}{7}.\left(3.5\right)^2\)
22)\(1\frac{13}{15}.0,75-\left(\frac{11}{20}+25\%\right):\frac{7}{3}\)
23)\(\frac{\left(\frac{2}{3}-0,75\right).\left(0,2-\frac{2}{5}\right)}{\frac{5}{9}-1\frac{1}{12}}\)
33)\(\left(25\%+\frac{1}{3}+0,75\right):\left(4\frac{3}{4}-3\frac{1}{2}\right)\)
35)\(\left(\frac{377}{-231}-\frac{123}{89}+\frac{34}{791}\right).\left(\frac{1}{6}-\frac{1}{8}-\frac{1}{24}\right)\)
\(\frac{89}{15}+25\left(\frac{9}{16}-\frac{117}{64}\right):\frac{27}{8}\)
Tính giá trị biểu thức
1, \(\frac{1}{16}-\frac{5}{21}+\left(\frac{-1}{16}+\frac{-3}{5}-\frac{-5}{21}\right)+\frac{-2}{3}+\frac{3}{4}\)
2, \(\left(\frac{5}{8}-\frac{4}{13}+\frac{3}{2}\right)-\left(\frac{5}{8}+\frac{9}{13}\right)-\left|\frac{-3}{2}\right|+\frac{-7}{15}\)
Rút gọn:a,left(frac{2}{3}right)^3:left(frac{-1}{3}right)^5b,left(frac{5}{7}right)^6:left(-frac{25}{49^{ }}right)^3c,left(-frac{2}{9}right)^4.left(frac{27}{16}right)^7d,left(frac{1}{3}right)^6.left(-frac{21}{19}right)^3
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Rút gọn:
a,\(\left(\frac{2}{3}\right)^3\):\(\left(\frac{-1}{3}\right)^5\)b,\(\left(\frac{5}{7}\right)^6\):\(\left(-\frac{25}{49^{ }}\right)^3\)
c,\(\left(-\frac{2}{9}\right)^4\).\(\left(\frac{27}{16}\right)^7\)d,\(\left(\frac{1}{3}\right)^6\).\(\left(-\frac{21}{19}\right)^3\)