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19/37+(1-19/37)
=19/37+18/37
=37/37=1
tích mink mink tích lại
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a,7429-(3125+4297)
=7407-93103+4297)
=7407-7400
7
b,9/8-(17/7-3/7)+7/8
=(9/8 +7/8)-(17/7-3/7)
=2-2
=0
c,tự làm nhé..
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![](https://rs.olm.vn/images/avt/0.png?1311)
19/37+1-19/37
=(19/37-19/37)+1
=0+1
=1
9/8-(17/7-3/7)+7/8
=(9/8+7/8)-(17/7-3/7)
=2-2
=0
1/2+3/4+1/2
=(1/2+1/2)+3/4
=1+3/4
=7/4
![](https://rs.olm.vn/images/avt/0.png?1311)
a,7429-(3125+429)
=7429-3125-429
=(7429-429)-3125
=7000-3125
=3875
b,\(\frac{19}{37}+\left(1-\frac{19}{37}\right)\)
=\(\frac{19}{37}+1-\frac{19}{37}\)
=\(\frac{19}{37}-\frac{19}{37}+1\)
=\(0+1\)
=\(1\)
a) 7429-(3125+429)=7429-3125-429=7429-429-3125=7000-3125=3875
b) 19/37+(1-19/37)=(19/37-19/37)+1=0+1=1
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 19/37 + (1 - 19/37)
= (19/37 - 19/37) + 1
= 0 + 1 = 1
b) 15,27 - 4,13 - 1,14
= 15,27 - ( 4,13 + 1,14)
= 15,27 - 5,27
= 10
c) 60 - 13,75 - 26,25
= 60 - ( 13,75 + 26,25)
= 60 - 40
= 20
![](https://rs.olm.vn/images/avt/0.png?1311)
4750/1000 + 370/1000 + 5280/1000 + 2500/1000 + 37/12 = 129/10 + 37/12 = 959/60
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![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{19}{4}+\frac{37}{100}+\frac{1}{8}+\frac{1}{2}+\frac{163}{100}+\frac{3}{8}\)
\(=\left(\frac{37}{100}+\frac{163}{100}\right)+\left(\frac{1}{8}+\frac{3}{8}+\frac{1}{2}\right)+\frac{19}{4}\)
\(=2+1+\frac{19}{4}\)
\(=3+\frac{19}{4}\)
\(=\frac{31}{4}\)
\(\frac{19}{4}+\frac{37}{100}+\frac{1}{8}+\frac{1}{2}+\frac{163}{100}+\frac{3}{8}\)
\(=\left(\frac{37}{100}+\frac{163}{100}\right)+\left(\frac{1}{8}+\frac{3}{8}+\frac{1}{2}\right)+\frac{19}{4}\)
\(=\left(\frac{37}{100}+\frac{163}{100}\right)+\left(\frac{1}{8}+\frac{3}{8}+\frac{4}{8}\right)+\frac{19}{4}\)
\(=2+1+\frac{19}{4}\)
\(=3+\frac{19}{4}\)
\(=\frac{31}{4}\)
Tích nha
= 19/37 + 18/37 = 37/37 = 1 chúc bn học tốt :)