BT1: Rút gọn
1) \(\frac{124.237+152}{870+235.122}\)
\(\frac{124.237+152}{870+235.122}\)
lắm rùi mà ?Announced the Upa and Polar
(124.237+152):(870+235.122)
= 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)
bằng 1 nha bạn.
Chúc bạn học giỏi nhoa!
(124.237 +152) : ( 870+235.122 )
=( 29388 +152) : (870+ 28670 )
= 29540 : 29540
= 1
h)(124.237 +152) : ( 870+ 235.122)
(124.237 +152) : ( 870+ 235.122)
= (29388 + 152 ) : ( 870 + 28670)
= 29540 + 29540
= 59 080
Bài 1: Tính nhanh:
[124.237+152] :[870+235.122]
Tính nhanh:
\(\frac{124.237+152}{870+235.122}\)
Tính nhanh (124.237+152):(870+235.122)
(124.237+152):(870+235.122)
( 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
<124.237+152>:<870+235.122>
\(\frac{124.237+152}{235.122+870}=\frac{122.247+2.237+152}{237.122-2.122+870}=\frac{122.237+474+152}{237.122-244+870}=\frac{122.237+626}{237.122+626}=1\)