Các câu hỏi tương tự
So sánh
a) \(\frac{10^{11}-1}{10^{12}-1}\)và\(\frac{10^{10}+1}{10^{10}+1}\)
b) \(\left(\frac{1}{80}\right)^7\)và \(\left(\frac{1}{243}\right)^6\)
Giải chi tiết
So sánh hai phân số sau:a)frac{7}{15}vàfrac{4}{9}b)frac{2001}{2002}vàfrac{2000}{2001}c)left(frac{1}{80}right)^7vàleft(frac{1}{243}right)^6d)left(frac{3}{8}right)^5vàleft(frac{5}{243}right)^3e) Afrac{2011}{2012}+frac{2012}{2013}Và B frac{2011+2012}{2012+2013}f) Cfrac{20^{10}+1}{20^{10}-1}VàDfrac{20^{10}-1}{20^{10}-3}g) G frac{10^{100}+2}{10^{100}-1}Và H frac{10^8}{10^8-3}h) E frac{98^{99}+1}{98^{89}+1} Và F frac{98^{98}+1}{98^{88}+1}
Đọc tiếp
So sánh hai phân số sau:
a)\(\frac{7}{15}và\frac{4}{9}\)
b)\(\frac{2001}{2002}và\frac{2000}{2001}\)
c)\(\left(\frac{1}{80}\right)^7và\left(\frac{1}{243}\right)^6\)
d)\(\left(\frac{3}{8}\right)^5và\left(\frac{5}{243}\right)^3\)
e) A=\(\frac{2011}{2012}+\frac{2012}{2013}\)Và B= \(\frac{2011+2012}{2012+2013}\)
f) \(C=\frac{20^{10}+1}{20^{10}-1}VàD=\frac{20^{10}-1}{20^{10}-3}\)
g) G =\(\frac{10^{100}+2}{10^{100}-1}\)Và H = \(\frac{10^8}{10^8-3}\)
h) E = \(\frac{98^{99}+1}{98^{89}+1}\) Và F =\(\frac{98^{98}+1}{98^{88}+1}\)
Aleft(1frac{1}{6}timesfrac{6}{7}times6:frac{3}{5}right):left(4frac{1}{5}timesfrac{10}{11}+5frac{2}{10}right)B1frac{13}{15}times25%times3+left(frac{8}{15}-frac{79}{60}right):1frac{23}{4}Cfrac{123}{4567}timesfrac{1}{8}+frac{123}{4567}timesfrac{1}{2}-frac{123}{4567}timesfrac{13}{8}Dfrac{10frac{1}{3}timesleft(24frac{1}{2}-15frac{6}{7}right)-frac{12}{11}timesleft(frac{10}{3}-1,75right)}{left(frac{5}{9}-0,25right)timesfrac{60}{11}+194frac{8}{99}}
Đọc tiếp
\(A=\left(1\frac{1}{6}\times\frac{6}{7}\times6:\frac{3}{5}\right):\left(4\frac{1}{5}\times\frac{10}{11}+5\frac{2}{10}\right)\)
\(B=1\frac{13}{15}\times25\%\times3+\left(\frac{8}{15}-\frac{79}{60}\right):1\frac{23}{4}\)
\(C=\frac{123}{4567}\times\frac{1}{8}+\frac{123}{4567}\times\frac{1}{2}-\frac{123}{4567}\times\frac{13}{8}\)
\(D=\frac{10\frac{1}{3}\times\left(24\frac{1}{2}-15\frac{6}{7}\right)-\frac{12}{11}\times\left(\frac{10}{3}-1,75\right)}{\left(\frac{5}{9}-0,25\right)\times\frac{60}{11}+194\frac{8}{99}}\)
\(So\)\(sanh\):
a)\(\left(\frac{1}{80}\right)^7\)và\(\left(\frac{1}{243}\right)^6\)
b)\(\left(\frac{3}{8}\right)^5\)và \(\left(\frac{5}{243}\right)^3\)
Tìm x, biết:frac{3}{left(x+2right)left(x+5right)}+frac{5}{left(x+5right)left(x+10right)}+frac{7}{left(x+10right)left(x+17right)}frac{x}{left(x+2right)left(x+17right)}left(xnotin-2;-5;-10;-17right)frac{2}{left(x-1right)left(x-3right)}+frac{5}{left(x-3right)left(x-8right)}+frac{12}{left(x-8right)left(x-20right)}-frac{1}{x-20}-frac{3}{4}Với xnotin1;3;8;20frac{x+1}{10}+frac{2+1}{11}frac{x+1}{12}frac{x+1}{13}+frac{x+1}{14}frac{x-10}{30}+frac{x-14}{43}+frac{x-5}{95}+frac{x-148}{8}0
Đọc tiếp
Tìm x, biết:
\(\frac{3}{\left(x+2\right)\left(x+5\right)}+\frac{5}{\left(x+5\right)\left(x+10\right)}+\frac{7}{\left(x+10\right)\left(x+17\right)}=\frac{x}{\left(x+2\right)\left(x+17\right)}\left(x\notin-2;-5;-10;-17\right)\)
\(\frac{2}{\left(x-1\right)\left(x-3\right)}+\frac{5}{\left(x-3\right)\left(x-8\right)}+\frac{12}{\left(x-8\right)\left(x-20\right)}-\frac{1}{x-20}=-\frac{3}{4}\)
Với \(x\notin1;3;8;20\)
\(\frac{x+1}{10}+\frac{2+1}{11}\frac{x+1}{12}=\frac{x+1}{13}+\frac{x+1}{14}\)
\(\frac{x-10}{30}+\frac{x-14}{43}+\frac{x-5}{95}+\frac{x-148}{8}=0\)
So sánh:a, frac{64}{85} và frac{73}{81}b, frac{67}{77} và frac{73}{83}c, frac{456}{461} và frac{123}{128}d, frac{2015.2016-1}{2015.2016} và frac{2016.2017-1}{2016.2017}e, A frac{10^{12}-1}{10^{11}-1} và frac{10^{11}+1}{10^{10}+1}f, left(frac{1}{80}right)^7 và left(frac{1}{243}right)^6g, left(frac{3}{8}right)^5 và left(frac{5}{243}right)^5
Đọc tiếp
So sánh:
a, \(\frac{64}{85}\) và \(\frac{73}{81}\)
b, \(\frac{67}{77}\) và \(\frac{73}{83}\)
c, \(\frac{456}{461}\) và \(\frac{123}{128}\)
d, \(\frac{2015.2016-1}{2015.2016}\) và \(\frac{2016.2017-1}{2016.2017}\)
e, A= \(\frac{10^{12}-1}{10^{11}-1}\) và \(\frac{10^{11}+1}{10^{10}+1}\)
f, \(\left(\frac{1}{80}\right)^7\) và \(\left(\frac{1}{243}\right)^6\)
g, \(\left(\frac{3}{8}\right)^5\) và \(\left(\frac{5}{243}\right)^5\)
Tính:Aleft(1-frac{2}{3}+frac{4}{3}right)-left(frac{4}{5}-1right)+left(frac{7}{5}+2right)Bleft(-3+frac{3}{4}-frac{1}{3}right):left(5+frac{2}{5}-frac{2}{3}right)Cleft(frac{3}{5}-frac{4}{15}right).left(frac{2}{7}-frac{3}{14}right)-left(frac{5}{9}-frac{7}{27}right).left(1-frac{3}{5}right)+left(1-frac{11}{12}right).left(1+frac{11}{12}right)Dfrac{left(frac{3}{10}-frac{4}{15}-frac{7}{20}right).frac{-5}{19}}{left(frac{1}{14}+frac{1}{7}-frac{-3}{35}right).frac{4}{3}}
Đọc tiếp
Tính:
A=\(\left(1-\frac{2}{3}+\frac{4}{3}\right)-\left(\frac{4}{5}-1\right)+\left(\frac{7}{5}+2\right)\)
B=\(\left(-3+\frac{3}{4}-\frac{1}{3}\right):\left(5+\frac{2}{5}-\frac{2}{3}\right)\)
C=\(\left(\frac{3}{5}-\frac{4}{15}\right).\left(\frac{2}{7}-\frac{3}{14}\right)-\left(\frac{5}{9}-\frac{7}{27}\right)\)\(.\left(1-\frac{3}{5}\right)+\left(1-\frac{11}{12}\right).\left(1+\frac{11}{12}\right)\)
D=\(\frac{\left(\frac{3}{10}-\frac{4}{15}-\frac{7}{20}\right).\frac{-5}{19}}{\left(\frac{1}{14}+\frac{1}{7}-\frac{-3}{35}\right).\frac{4}{3}}\)
So sánh:
a)\(\left(\frac{1}{80}\right)^7và\left(\frac{1}{243}\right)^6\)
b)\(\left(\frac{3}{8}\right)^5và\left(\frac{5}{243}\right)^3\)
Tìm xbiết:a,1+frac{1}{3}+frac{1}{6}+frac{1}{10}+...+frac{2}{x.left(x+1right)}1frac{2005}{2007}b,left[frac{6:frac{3}{5}-1frac{1}{16}.frac{3}{7}}{4.frac{1}{5}.frac{10}{11}+5frac{2}{11}}-frac{left(frac{3}{20}+frac{1}{2}-frac{1}{5}right).frac{12}{49}}{3frac{1}{3}+frac{2}{8}}right].x2frac{23}{96}Bạn nào làm nhanh và đầy đủ nhất thì mình tik cho
Đọc tiếp
Tìm \(x\)biết:
\(a,\)\(1+\frac{1}{3}+\frac{1}{6}+\frac{1}{10}+...+\frac{2}{x.\left(x+1\right)}=1\frac{2005}{2007}\)
\(b,\)\(\left[\frac{6:\frac{3}{5}-1\frac{1}{16}.\frac{3}{7}}{4.\frac{1}{5}.\frac{10}{11}+5\frac{2}{11}}-\frac{\left(\frac{3}{20}+\frac{1}{2}-\frac{1}{5}\right).\frac{12}{49}}{3\frac{1}{3}+\frac{2}{8}}\right].x=2\frac{23}{96}\)
Bạn nào làm nhanh và đầy đủ nhất thì mình tik cho