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=54.275+275+825.15
=275.55+825.15
=275.55+55.15.15
=55.(275+225)
=55.500
=27500
\(\frac{1997x1996-1}{1995x1997+1996}\)
\(=\frac{1995x1997+1997-1}{1995x1997+1996}\)
\(=\frac{1995x1997+1996}{1995x1997+1996}\)
\(=1\)
\(\frac{1996x1995-996}{1000+1996x1994}\)
\(=\frac{1996x1994+1996-996}{1000+1996x1994}\)
\(=\frac{1996x1994+1000}{1000+1996x1994}\)
\(=1\)
1996 x 1995 - 1996 - 1996 x 1994 =
1996 x 1995 - 1996 x 1995 = 0
k cho mk nha!!
=\(\frac{37}{53}+\frac{23}{48}+\frac{53}{37}+\frac{24}{23}\)
=\(\left(\frac{37}{53}+\frac{53}{37}\right)+\left(\frac{23}{24.2}+\frac{24}{23}\right)\)
=\(1+\left(\frac{23}{24}-\frac{23}{2}+\frac{23}{24}\right)\)
=\(1+\frac{23}{2}=\frac{25}{2}\)
5/11+1/2+2/5+6/11+3/4+16/25+5/16
=1441/400
19/4+37/100+1/8+132/25+5/2+37/12
=1933/120
\(2002.2022+2000+22-2022.1003\)
\(=2002.2022+2022.1-2022.1003\)
\(=2022.\left(2002+1-1003\right)\)
\(=2022.1000\)
\(=2022000\)
2002.2022+2000+22-2022.1003
=2002.2022-2022.1003+2000+22
=2002.2022-2022.1003+2022
=2022.(2002-1003+1)
=2022.1000
=2022000