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![](https://rs.olm.vn/images/avt/0.png?1311)
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!!!
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{13}{15}+9\%+\dfrac{41}{100}+0,24=\dfrac{13}{15}+\dfrac{9}{100}+\dfrac{41}{100}+\dfrac{6}{25}=\left(\dfrac{13}{15}+\dfrac{6}{25}\right)+\left(\dfrac{9}{100}+\dfrac{41}{100}\right)=\dfrac{83}{75}+\dfrac{1}{2}=\dfrac{241}{150}\)
\(\dfrac{13}{15}+9\%+\dfrac{41}{100}+0,24\)
\(=\dfrac{13}{15}+\left(\dfrac{9}{100}+\dfrac{41}{100}+\dfrac{24}{100}\right)\)
\(=\dfrac{13}{15}+\dfrac{74}{100}\)
\(=\dfrac{260}{300}+\dfrac{222}{300}\)
\(=\dfrac{482}{300}=\dfrac{241}{150}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
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 ⇒ \(\dfrac{1}{a+1}\) < \(\dfrac{1}{a-1}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
13/50+9%+41/100+0,24
= 25/100+9/100+41/100+24/100
= 25+9+41+24/100
= 99/100
Nhớ tích cho mình nhé !
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{13}{50}+9\%+\dfrac{41}{100}+0,24\)
\(=\dfrac{26}{100}+\dfrac{9}{100}+\dfrac{41}{100}+\dfrac{24}{100}\)
\(=\dfrac{26+9+41+24}{100}=1\)
![](https://rs.olm.vn/images/avt/0.png?1311)
13/50 + 9% + 41/100 + 0,24
=26/100+9/100+41/100+24/100
=100/100
=1
mình nhanh nhất đó nha ^^
đáp số:1
mik mới học mong chỉ dạy nhiều hơn
xin cảm ơn!