Các câu hỏi tương tự
so sanh hai phan so A=2/5+2/15+4/215-422/2015:17/5+27/5+239/215-4.517/2015 va B=2/84+2/112+1/72+4/360
a, 25 - ( -76 ) - 725 + 224b, -3 . 15 + 15 ( -12 ) - 15 . 85c, frac{-11}{12}. frac{-4}{33}. frac{84}{-25}. frac{-5}{6}d, 17. 215 - 117 . 215 - 17 . 15 + 117 . 15e. 35 . ( -32) . 123 . ( -25)f. 3frac{2}{7} . 12frac{1}{2}- 3frac{2}{7}.. 5frac{1}{2}g. frac{7,5.6,3.0,4}{0,8.2,5.12,6}h. frac{0,4-frac{2}{9}+frac{2}{11}}{1,4-frac{7}{9}+frac{7}{11}}
Đọc tiếp
a, 25 - ( -76 ) - 725 + 224
b, -3 . 15 + 15 ( -12 ) - 15 . 85
c, \(\frac{-11}{12}\). \(\frac{-4}{33}\). \(\frac{84}{-25}\). \(\frac{-5}{6}\)
d, 17. 215 - 117 . 215 - 17 . 15 + 117 . 15
e. 35 . ( -32) . 123 . ( -25)
f. \(3\frac{2}{7}\) . \(12\frac{1}{2}\)- \(3\frac{2}{7}\).. \(5\frac{1}{2}\)
g. \(\frac{7,5.6,3.0,4}{0,8.2,5.12,6}\)
h. \(\frac{0,4-\frac{2}{9}+\frac{2}{11}}{1,4-\frac{7}{9}+\frac{7}{11}}\)
SO SÁNH:
A=\(\frac{\frac{2016}{1}+\frac{2015}{2}+\frac{2014}{3}+.....+\frac{2}{2015}+\frac{1}{2016}}{\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+.....+\frac{1}{2016}+\frac{1}{2017}}\)
VÀ
B=2017
Tính:
\(\frac{1}{2}+\frac{1}{3}-\frac{1}{4}+\frac{1}{5}-\frac{1}{6}+\frac{1}{7}-\frac{1}{8}+.....+\frac{1}{2015}-\frac{1}{2016}+\frac{1}{2017}.\)
\(\frac{5-\frac{5}{3}+\frac{5}{9}-\frac{5}{27}}{8-\frac{8}{3}+\frac{8}{9}-\frac{8}{27}}:\frac{15-\frac{15}{11}+\frac{15}{121}}{16-\frac{16}{11}+\frac{16}{121}}.\)
Cho \(A=\frac{\left(3\frac{2}{15}+\frac{1}{15}\right):2\frac{1}{2}}{\left(5\frac{3}{7}-2\frac{1}{4}\right):4\frac{43}{56}}\)
\(B=\frac{1;2:\left(1\frac{1}{5}:1\frac{1}{4}\right)}{0,32+\frac{2}{25}}\)
So sánh A và B
Bài 1: Tính GTBT một cách hợp lí:
\(A=\frac{7}{4}.\left(\frac{3333}{1212}.\frac{3333}{2020}.\frac{3333}{3030}.\frac{3333}{4242}\right)\)
Bài 2: So sánh \(A=\frac{2^{2015}+1}{2^{2015}-1}\)và \(B=\frac{2^{2015}-3}{2^{2015}-5}\)
Cho A =\(\frac{1}{2}.\frac{3}{4}.\frac{5}{6}..........\frac{2013}{2014}.\frac{2015}{2016}\)So sánh A2 và \(\frac{1}{2017}\)
Tìm số nguyên x
a) \(\frac{1}{3}+\frac{-2}{5}+\frac{1}{6}+\frac{-1}{5}\le x< \frac{-3}{4}+\frac{2}{7}+\frac{-1}{4}+\frac{3}{5}+\frac{5}{7}\)
b)\(\frac{5}{17}+\frac{-9}{4}+\frac{-26}{31}+\frac{12}{17}+\frac{-11}{31}< \frac{x}{9}\le\frac{-3}{7}+\frac{7}{15}+\frac{4}{-7}+\frac{8}{15}\)
Tính:a) frac{frac{3}{5}+frac{3}{27}-frac{3}{9}-frac{3}{11}}{frac{4}{5}+frac{4}{27}-frac{4}{9}-frac{4}{11}}b) frac{5-frac{5}{3}-frac{5}{27}}{8-frac{8}{3}-frac{8}{27}}:frac{15+frac{15}{121}-frac{15}{11}}{16+frac{16}{121}-frac{16}{11}}c) frac{1}{2}:left(frac{-3}{2}right):frac{4}{3}:left(frac{-5}{4}right):frac{6}{5}:left(frac{-7}{6}right):...:left(frac{-101}{100}right)Mọi người nhớ đánh nhanh câu trả lời giúp mình nhé!!
Đọc tiếp
Tính:
a) \(\frac{\frac{3}{5}+\frac{3}{27}-\frac{3}{9}-\frac{3}{11}}{\frac{4}{5}+\frac{4}{27}-\frac{4}{9}-\frac{4}{11}}\)
b) \(\frac{5-\frac{5}{3}-\frac{5}{27}}{8-\frac{8}{3}-\frac{8}{27}}:\frac{15+\frac{15}{121}-\frac{15}{11}}{16+\frac{16}{121}-\frac{16}{11}}\)
c) \(\frac{1}{2}:\left(\frac{-3}{2}\right):\frac{4}{3}:\left(\frac{-5}{4}\right):\frac{6}{5}:\left(\frac{-7}{6}\right):...:\left(\frac{-101}{100}\right)\)
Mọi người nhớ đánh nhanh câu trả lời giúp mình nhé!!