Các câu hỏi tương tự
1.So Sánh
a) A=\(\frac{11}{2017}+\frac{4}{2019}\)và B=\(\frac{10}{2017}+\frac{10}{2019}\)
b) M=\(\frac{1}{5}+\frac{1}{12}+\frac{1}{13}+\frac{1}{14}+\frac{1}{30}+\frac{1}{61}+\frac{1}{62}và\frac{1}{2}\)
c) E= \(\frac{4116-14}{10290-35}và\)K= \(\frac{2929-101}{2.1919+404}\)
1) Tính
a)\(\frac{13}{15}+\frac{13}{35}+\frac{13}{63}+\frac{13}{99}\)
b)\(\left(\frac{15}{1\cdot2\cdot3}+\frac{15}{2\cdot3\cdot4}+\frac{15}{3\cdot4\cdot5}+.....+\frac{15}{18\cdot19\cdot20}\right)\cdot x=1\)
Bài 1: Tính nhanh:
\(\frac{1}{3}+\frac{13}{15}+\frac{33}{35}+\frac{61}{63}+\frac{97}{99}=?\)
GIẢI ĐẦY ĐỦ GIÙM MÌNH!
CÁC BẠN LÀM ĐÚNG NHƯNG KHÔNG ĐẦY ĐỦ NÊN MÌNH KHÔNG TICK!~
Tính nhanh:a) N frac{18times275+3times666+9times614times2}{1+4+7+...+58+61+62+62times2+62times3+62times4-271}.b) M( 1- frac{1}{3})x( 1- frac{1}{6})x( 1- frac{1}{10})x( 1- frac{1}{10})x( 1- frac{1}{15})x( 1- frac{1}{21})x( 1- frac{1}{28}).N( frac{6}{8}+ 1)x( frac{6}{18}+ 1)x( frac{6}{30}+ 1)x...x( frac{6}{10100}+ 1).
Đọc tiếp
Tính nhanh:
a) N= \(\frac{18\times275+3\times666+9\times614\times2}{1+4+7+...+58+61+62+62\times2+62\times3+62\times4-271}\).
b) M=( 1- \(\frac{1}{3}\))x( 1- \(\frac{1}{6}\))x( 1- \(\frac{1}{10}\))x( 1- \(\frac{1}{10}\))x( 1- \(\frac{1}{15}\))x( 1- \(\frac{1}{21}\))x( 1- \(\frac{1}{28}\)).
N=( \(\frac{6}{8}\)+ 1)x( \(\frac{6}{18}\)+ 1)x( \(\frac{6}{30}\)+ 1)x...x( \(\frac{6}{10100}\)+ 1).
Hãy so sánh \(A\) với \(\frac{31}{6}\)biết rằng:\(A=\frac{1}{7}+\frac{1}{4}+\frac{2005}{2006}+\frac{1}{13}+\frac{1}{9}+\frac{2006}{2007}+\frac{1}{25}+\frac{1}{16}+\frac{2007}{2008}+\frac{1}{49}+\frac{1}{25}+\frac{2008}{2005}+\frac{1}{97}+\frac{1}{36}\).
\(A=5,3:\left(5\frac{5}{28}-2\frac{13}{36}+1\frac{16}{63}\right)\)
\(B=\left(\frac{19}{10}\times\frac{19}{10}+\frac{39}{2}:\frac{13}{3}\right)\times\left(\frac{62}{75}-\frac{12}{75}\right)\)
So sánh \(A\)với\(13\),biết rằng:
\(A=\frac{13}{15}+\frac{7}{5}+\frac{3}{4}+\frac{1}{5}+\frac{1}{7}+\frac{19}{20}+\frac{5}{4}+\frac{1}{3}+\frac{1}{6}+\frac{1}{13}+\frac{17}{23}+\frac{9}{8}+\frac{2}{5}+\frac{1}{7}+\frac{1}{25}+\frac{3}{2}+\frac{1}{8}+\frac{1}{19}+\frac{1}{9}+\frac{1}{97}\)
\(B=\frac{1}{3}+\frac{1}{15}+\frac{1}{35}+\frac{1}{63}+\frac{1}{99}=?\) ?
Cần gấp !!!
Tính hợp lý :
a) A = \(\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+....+\frac{1}{16384}\)
b) B = \(\frac{1}{2}+\frac{1}{3}+\frac{1}{6}+\frac{1}{12}+\frac{1}{15}+\frac{1}{20}+\frac{1}{30}+\frac{1}{42}+\frac{1}{56}+\frac{1}{63}\)