=0,26+0,09+0,41+0,24

=0,67+0,33

=1

Bài 3

a,26/100+0,009+41/100+0,24

0,26+0,09+0,41+0,24

(0,26+0,24)+(0,09+0,41)

0,5+0,5

=1

b,9+1/4+6+2/7+7+3/5+8+2/3+2/5+1/3+5/7+3/4

(9+6+7+8)+(2/7+5/7)+(1/4+3/4)+(3/5+2/5)+(2/3+1/3)

30+1+1+1+1

=34

Bài 4,5 khó quá mik ko bít lamf^^))

Bài 4: a, \(\dfrac{2008}{2009}\) < 1; \(\dfrac{10}{9}\) > 1

           \(\dfrac{2008}{2009}\) < \(\dfrac{10}{9}\)

         b, \(\dfrac{1}{a+1}\) và \(\dfrac{1}{a-1}\)

Ta có: a + 1 > a - 1 ⇒ \(\dfrac{1}{a+1}\) < \(\dfrac{1}{a-1}\)

\(\frac{13}{50}+9\%+\frac{41}{100}+\frac{24}{100}\)

\(=\frac{26}{100}+\frac{9}{100}+\frac{41}{100}+\frac{24}{100}\)

\(=\frac{26+9+41+24}{100}=\frac{100}{100}=1\)

= 1 nha

13/50 + 74/100+ 41/100+59/100

[ 13/50 + 74/100 ] + [41/100 + 59/100]

1+1= 2

13/50 + 74% + 41/100 + 0,59

=0,26 + 0,74 + 0,41 + 0,59

=1+1

1

26%+0,75%+41%+0,59%=.................

viết zậy khó đọc lắm bn ưi

13/50+74%+41/100+0,59%

= 13/50 + 74/100 + 41/100 + 59/100

= 13/50 + ( 74/100 + 41/100 + 59/100 ) 

= 13/50 + 174/100

= 13/50 + 87/50

= 100/50 

= 2

Chúc học tốt!

13/50 + 74% + 41/100 + 0,59

= 26/100 + 74/100 + 41/100 + 59/100

= ( 26/100 + 74/100 ) + ( 41/100 + 59/100 )

=          100/100         +              100/100

=         200/100

=          2

bạn có thể kham thảo cách làm của mình , thấy đúng thì tick cho mình nhé , cảm ơn !

13/50 + 74% + 41/100 + 0,59

= 26% + 74% +41% + 59%

= ( 26% + 74%) +(41% + 59%)

= 100% + 100% 

= 200%

Đáp án:A=13/50+74%+41/100+0,59

= (26/100+74/100+41/100)+0,59

=141/100+0,59

=2

\(\dfrac{13}{50}+0,59+74\%+\dfrac{41}{100}\\ =0,26+0,59+0,74+0,41\\ =\left(0,26+0,74\right)+\left(0,59+0,41\right)\\ =1+1=2\)

\(\dfrac{13}{50}+0,59+74\%+\dfrac{41}{100}\)

\(=\dfrac{13}{50}+\dfrac{59}{100}+\dfrac{37}{50}+\dfrac{41}{100}\)

\(=\left(\dfrac{13}{50}+\dfrac{37}{50}\right)+\left(\dfrac{59}{100}+\dfrac{41}{100}\right)\)

\(=\dfrac{50}{50}+\dfrac{100}{100}=1+1\)

\(=2\)

13/50+9%+41/100+24%

=26/100+9/100+41/100+24/100

=26/100+24/100+9/100+41/100

=50/100+50/100

=100/100=1

= 26/100 + 9/100 + 41/100 + 24/100

= ( 26/100 + 24/100 ) + ( 9/100 + 41/100 )

=            50/100          +          50/100

=                            100/100

=                                 1

\(\dfrac{13}{50}+9\%+\dfrac{41}{100}+0,24\)

\(\dfrac{13}{50}+\dfrac{9}{100}+\dfrac{41}{100}+\dfrac{24}{100}\)

\(\dfrac{13}{50}+\left(\dfrac{9+41+24}{100}\right)\)

\(\dfrac{13}{50}+\dfrac{74}{100}\)

\(\dfrac{26}{100}+\dfrac{74}{100}=\dfrac{100}{100}=1\)

=(13/50+0,24)+(9%+41/100)

=1/2+(9/100+41/100)

=1/2+1/2

=1