Ta có :(33/5-45/14):35/6]/(21-1,25):2,5
=(711/1225)/(79/10)
=1542/19355
5% của 1542/19355 là 771/193550
Đúng 0
Bình luận (0)
Các câu hỏi tương tự
\(\left[\left(6\frac{3}{5^{ }_{ }}-3\frac{3}{14}\right).5\frac{5}{6}\right]:\left[\left(21-1,25\right):2,5\right]\)Bn ào biết thì giúp mk với, mk sẽ tick cho !!
Tính :
a) \(1\frac{7}{20}:2,7+2,7:1,35+\left(0,4:2\frac{1}{2}\right).\left(4,8-1\frac{3}{40}\right)\)
b) \(\left[\left(6\frac{3}{5}-3\frac{3}{14}\right):5\frac{5}{6}\right]:\left[\left(21-1,25\right):2,5\right]\)
cho \(A=\frac{\left(85\frac{7}{30}-85\frac{5}{18}\right)-2\frac{2}{5}}{0,04}\).Tính 12,5% của A
cho \(B=\frac{\left(6\frac{3}{5}-3\frac{3}{14}\right)\cdot5\frac{5}{6}}{\left(21-1,25\right):2,5}\).Tính 5% của B
a) Tính \(\frac{1}{2}\)của \(A\) biết rằng \(A=\frac{\left(85\frac{37}{30}-83\frac{5}{18}\right):2\frac{2}{3}}{0,04}\)
b) Tính \(12,5\%\) của \(B\)biết \(B=\frac{\left(6\frac{3}{5}-3\frac{3}{14}\right).5\frac{5}{6}}{\left(21-1,25\right):2,5}\)
Thực hiện các phép tínha) 25%-frac{5}{4}+1frac{5}{6}b) 75%:2frac{1}{5}-left(0,5right)^2.left(-7right)+2,5left(7frac{2}{3}-5frac{2}{3}right)c) 45:2frac{4}{7}+50%-1,25 d) 350%:frac{105}{24}+4frac{5}{6}:2-left(0,5^2right).30%e) 4frac{2}{5}.0,5-1frac{3}{7}.14%+left(-0,8right)
Đọc tiếp
Thực hiện các phép tính
a) \(25\%-\frac{5}{4}+1\frac{5}{6}\)
b) \(75\%:2\frac{1}{5}-\left(0,5\right)^2.\left(-7\right)+2,5\left(7\frac{2}{3}-5\frac{2}{3}\right)\)
c) \(45:2\frac{4}{7}+50\%-1,25\)
d) \(350\%:\frac{105}{24}+4\frac{5}{6}:2-\left(0,5^2\right).30\%\)
e) \(4\frac{2}{5}.0,5-1\frac{3}{7}.14\%+\left(-0,8\right)\)
A = \(26:[\frac{(3:10,2-0,1)}{25.\left(0,8+1,2\right)}+\frac{\left(34,06-33,81\right).4}{6,84:\left(38,57-25,15\right)}]+\frac{2}{3}:\frac{4}{21}\)
B = \(\frac{0,8:\left(\frac{4}{5}.1,25\right)}{0,64-\frac{1}{25}}+\frac{\left(1,08-\frac{2}{25}\right):\frac{4}{7}}{(6\frac{5}{9}-3\frac{1}{4}).2\frac{2}{17}}+\left(1,2.0,5\right)\)
a.\(74\frac{19}{35}.\frac{7}{90}+15\frac{16}{35}.\frac{7}{90}+2\frac{14}{90}\)
b,\(\left(\frac{-2}{5}+\frac{3}{7}\right)-\left(\frac{4}{9}+\frac{12}{20}-\frac{13}{35}\right)+\frac{7}{35}\)
AI GIAI DUOC MINH CHO 20 TICK
\(\frac{0,8:\left(\frac{4}{5}.1,25\right)}{0,64-\frac{1}{25}}+\frac{\left(100-\frac{2}{25}\right):\frac{4}{7}}{\left(6\frac{5}{9}-3\frac{1}{4}\right).2\frac{2}{27}}+\left(1,2.0,5\right):\frac{3}{5}\)
1 tính
a \(\left(\frac{9}{14}-\frac{9}{21}\right):\left(\frac{4}{5}+\frac{5}{6}\right)\)
b \(\frac{7}{10}-\frac{-3}{4}+\frac{-5}{6}-\frac{1}{5}+\frac{-2}{3}\)
c \(\left(-2\right)^2.\left(\frac{3}{4}-0,25\right):\left(2\frac{1}{4}-1\frac{1}{6}\right)\)
d \(-\frac{1}{7}.\left(9\frac{1}{2}-0,75\right):\frac{2}{7}+0,625:1\frac{2}{3}\)