Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
=26/100+9/100+41/100+24/100
=(26+24+9+41)/100
=100/100
=1
13/50+0,09+41/100+0,24
= 26/100+0,09+41/100+0,24
= (26/100+41/100)+(0,09+0,24)
=67/100+0,33
= 67/100+33/100
=100/100=1
Chúc bạn học tốt!!!
Ta có : 13 50 + 9 100 + 41 100 + 6 25 9 100 + 41 100 ( ) + ( 13 50 + 6 25 ) 1 = 1 2 + 50 13+ 12 = 1 2 + 1 2 = 1
\(\frac{13}{50}+9\%+\frac{41}{10}+0,24\)
\(=\frac{13}{50}+\frac{9}{100}+\frac{41}{100}+\frac{24}{100}\)
\(=\frac{13}{50}+\left(\frac{9}{100}+\frac{41}{100}+\frac{24}{100}\right)\)
\(=\frac{13}{50}+\frac{74}{100}\)
\(=\frac{13}{50}+\frac{37}{50}=\frac{50}{50}=1\)
a; A = \(\dfrac{4026\times2014+4030}{2013\times2016-2011}\)
A = \(\dfrac{2\times\left(2013\times2014+2015\right)}{2013\times2016-2011}\)
A = \(\dfrac{2\times\left(2013\times2016-2013\times2+2015\right)}{2013\times2016-2011}\)
A = \(\dfrac{2\times\left(2013\times2016-4026+2015\right)}{2013\times2016-2011}\)
A = \(\dfrac{2\times\left(2013\times2016-2011\right)}{2013\times2016-2011}\)
A = 2
=13/12x14/13x15/14x16/15x...x2006/2005x2007/2006x2008/2007
=2008/12
=502/3
A = 1\(\dfrac{1}{12}\) \(\times\) 1\(\dfrac{1}{13}\) \(\times\) 1\(\dfrac{1}{14}\) \(\times\) 1\(\dfrac{1}{15}\) \(\times\) ... \(\times\) 1\(\dfrac{1}{2005}\) \(\times\) 1\(\dfrac{1}{2006}\) \(\times\) 1\(\dfrac{1}{2007}\)
A = ( 1 + \(\dfrac{1}{12}\)) \(\times\) ( 1 + \(\dfrac{1}{13}\)) \(\times\) ( 1 + \(\dfrac{1}{14}\)) \(\times\)...\(\times\) ( 1 + \(\dfrac{1}{2006}\))\(\times\)(1+\(\dfrac{1}{2007}\))
A = \(\dfrac{13}{12}\) \(\times\) \(\dfrac{14}{13}\) \(\times\) \(\dfrac{15}{14}\) \(\times\) ...\(\times\) \(\dfrac{2007}{2006}\) \(\times\) \(\dfrac{2008}{2007}\)
A = \(\dfrac{13\times14\times15\times...\times2007}{13\times14\times15\times...\times2007}\) \(\times\) \(\dfrac{2008}{12}\)
A = 1 \(\times\) \(\dfrac{502}{3}\)
A = \(\dfrac{502}{3}\)
TL:
\(\frac{12}{100}\)= 0,12
\(\frac{5}{100}\)= 0,05
\(\frac{306}{1000}\)= 0,306
-HT-
\(\dfrac{13+x}{20}\) = \(\dfrac{3}{4}\)
13 + \(x\) = 20 \(\times\) \(\dfrac{3}{4}\)
13 + \(x\) = 15
\(x\) = 15 - 13
\(x\) = 2
Cách khác :
\(\dfrac{13+x}{20}=\dfrac{3}{4}\)
\(\dfrac{13+x}{20}=\dfrac{15}{20}\)
\(13+x=15\)
\(x=15-13\)
\(x=2\)
\(\frac{13}{50}+9\%+\frac{41}{100}+0,24\)
\(=\frac{26}{100}+\frac{9}{100}+\frac{41}{100}+\frac{24}{100}\)
\(=\frac{26+9+41+24}{100}\)
\(=1\)
Đơn giản hóa bài toán :
\(\frac{13}{50}+9\%+\frac{41}{100}+0,24\)
\(=\frac{26}{100}+\frac{9}{100}+\frac{41}{100}+\frac{24}{100}\)
\(=\frac{26+9+41+24}{100}\)
\(=\frac{100}{100}\)
\(\dfrac{13}{50}+9\%+\dfrac{41}{100}+0,24\)
\(=0,26+0,09+0,41+0,24\)
\(=\left(0,26+0,24\right)+\left(0,09+0,41\right)\)
\(=0,5+0,5\)
\(=1\)
26%+9%+41%+24%=100%