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=\(\frac{37}{53}+\frac{23}{48}+\frac{53}{37}+\frac{24}{23}\)
=\(\left(\frac{37}{53}+\frac{53}{37}\right)+\left(\frac{23}{24.2}+\frac{24}{23}\right)\)
=\(1+\left(\frac{23}{24}-\frac{23}{2}+\frac{23}{24}\right)\)
=\(1+\frac{23}{2}=\frac{25}{2}\)
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\(\frac{254+399.253}{254.399-145}=\frac{254+399.253}{\left(253+1\right).399-145}=\frac{254+399.253}{253.399+\left(399-145\right)}\)
\(=\frac{399.253+254}{399.353+354}=1\)
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=54.275+275+825.15
=275.55+825.15
=275.55+55.15.15
=55.(275+225)
=55.500
=27500
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\(\frac{1997x1996-1}{1995x1997+1996}\)
\(=\frac{1995x1997+1997-1}{1995x1997+1996}\)
\(=\frac{1995x1997+1996}{1995x1997+1996}\)
\(=1\)
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\(\frac{1996x1995-996}{1000+1996x1994}\)
\(=\frac{1996x1994+1996-996}{1000+1996x1994}\)
\(=\frac{1996x1994+1000}{1000+1996x1994}\)
\(=1\)
1996 x 1995 - 1996 - 1996 x 1994 =
1996 x 1995 - 1996 x 1995 = 0
k cho mk nha!!
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16x48+8x48+32x14
=48x(16+8)+32x14
=48x24+32x14
=1152+448
=1600
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