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7256 . 4375 - \(\frac{725}{3650}\) + 4375 . 7256
= (7256 . 4375 - 4375 . 7256) + \(\frac{725}{3650}\)
= 0 + \(\frac{725}{3650}\)
= \(\frac{725}{3650}\)
bài 1
a) ( 864 . 48 - 432 . 96 ) : 864 . 432 b) ( 7256 . 4375 - 725 ) : ( 3650 + 4375 . 7255 )
=( 41 472-41 472) :864 . 432 = ( 31745000 - 725 ) : ( 3650 + 31740625 )
= ( 0: 864 ) . 432 = 31744275 : 31744275
=0.432=0 =1
bài 2 mik lm sau giúp bn nhé
bài 1
a) ( 864 . 48 - 432 . 96 ) : 864 . 432 b) ( 7256 . 4375 - 725 ) : ( 3650 + 4375 . 7255 )
=( 41 472-41 472) :864 . 432 = ( 31745000 - 725 ) : ( 3650 + 31740625 )
= ( 0: 864 ) . 432 = 31744275 : 31744275
=0.432=0 =1
bài 2 tự làm
155 . 155 -155 . 41 : 114
= 155( 155-41):114
=155.114:114
=155
(7256.4375 - 725)/(3650 + 4375.7255)
= [(7255 +1).4375 - 725]/(3650 + 4375.7255)
= [(7255.4375 + 1.4375 - 725]/(3650 + 4375.7255)
= (7255.4375 + 3650)/(3650 + 4375.7255) = 1
a) (155.155-155.41):114
= 155( 155-41):114
=155.114:114
=155
(7256.4375 - 725)/(3650 + 4375.7255)
= [(7255 +1).4375 - 725]/(3650 + 4375.7255)
= [(7255.4375 + 1.4375 - 725]/(3650 + 4375.7255)
= (7255.4375 + 3650)/(3650 + 4375.7255) = 1
\(\dfrac{7256.4375-725}{3650+4375.7255}\)
\(=\dfrac{\left(7255+1\right).4375-725}{3650+4375.7255}\)
\(=\dfrac{7255.4375+1.4375-725}{3650+4375.7255}\)
\(=\dfrac{7255.4375+3650}{3650+4375.7255}=1\)
\(\dfrac{7256.4375-725}{3650+4375.7255}=\dfrac{\left(7255+1\right).4375-725}{3650+4375.7255}\)
\(=\dfrac{7255.4375+4375-725}{3650+4372.7255}=\dfrac{7255.4375+3650}{3650+4375.7255}=1\)
7256*4375-725/3650+4375*7255
= 7256 * 4375 + 4375 * 7255 - 29/146
= 4375* ( 7256+7256) -29/146
= 4375* 14512 -29/146
= 63490000- 29/146
7256 x 4375 - 725
= 31745000 - 725
= 31744275
3650 + 4375 x 7255
= 3650 + 31740625
= 31744275
a) Ta có: \(347\cdot2^2-2^2\left(216+184\right):8\)
\(=347\cdot4-4\cdot400:8\)
\(=1388-200=1188\)