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= 1
124.237 + 152 = 122. 237 + 2.237 + 152 = 122.235 + 2.122 + 474 + 152 = 122 .235 + 244 + 474 + 152 = 122 .235 870 : 870 + 235 .122 = 1
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(124.237 +152) : ( 870+ 235.122)
= (29388 + 152 ) : ( 870 + 28670)
= 29540 + 29540
= 59 080
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( 124.237 + 152 ) : ( 870 + 235.122 )
= ( 29388 + 152 ) : ( 870 + 28670 )
= 29540 : 29540
= 1
Answer : 1
(124.237+152):(870+235.122)
=(29388+152):(870+28670)
=29540:29540
=1
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a) 1990.1990 - 1992.1988
= 1990.1990 - (1990 + 2)(1990 - 2)
= 1990.1990 - 1990.1990 + 4 = 4
b) (1374.57 + 687.86) : (870 + 235.122)
= (1374.57 + 687.2.43) : (10.87 + 5.47.2.61)
= (1374.57 + 1374.43) : (10.87 + 10.47.61)
= [1374(57 + 43)] : [10(87 + 47.61)]
= (1374.100) : [10(87 + 47.61)] (đoạn này mẫu số xấu quá, hetcuu)
c) (124.237 + 152) : (870 + 235.122)
= (124.235 + 124.2 + 152) : (870 + 235.122)
= (122.235 + 2.235 + 2.124 + 152) : (870 + 235.122)
= (122.235 + 470 + 248 + 152) : (235.122 + 870)
= (122.235 + 870) : (235.122 + 870) = 1
d) \(\dfrac{423134\cdot846267-423133}{846267\cdot423133+423134}=\dfrac{423133\cdot846267+846267-423133}{846267\cdot423133+423134}\)
\(=\dfrac{423133\cdot846267+423134}{846267\cdot423133+423134}=1\)
( 124.237 + 152 ) : ( 870 + 235.122 )
=(29388+152)/(870+28670)
=29540/29540
=1
\(\left(124.237+152\right):\left(870+235.122\right)\)
\(=\left(29388+152\right):\left(870+235.122\right)\)
\(=29540:\left(870+28670\right)\)
\(=29540:29540\)
\(=1\)