( 135,4 - 84,3 ) : 2,5 - 10,46 = 51,1 : 2,5 - 10,46
= 20,44 - 10,46
= 9,98
(135.4-84.3):2.5-10.46
=(540-252):10-460
=288:10-460
=28,8-460
=
(135.4 - 84.3 ) / 2.5 - 10.46
= 51.1 / 2.5 - 10.46
= 20.44 - 10.46
= 9.98
Tính giá trị biểu thức:
\(\frac{\left(135.4-84.3\right)}{2.5-10.46}\)
\(=\frac{\left(45.3.4-21.4.3\right)}{2.5-5.2.46}\)
\(\frac{4.3.\left(45-21\right)}{5.2.\left(1-46\right)}\)
\(=\frac{4.3.24}{5.2.\left(-45\right)}\)
\(=\frac{48}{-75}=\frac{-16}{25}\)
Tk + kb vs mk nha! thanks