(723.45 + 723.4): 725
= 723.(45 + 4):725
= 723.49:725
= 723.72:725
= 725:725
= 1
\(\left(7^{23}.45+7^{23}.4\right):7^{25}\)
\(=\left[7^{23}.\left(45+4\right)\right]:7^{25}\)
\(=\left[7^{23}.49\right]:7^{25}\)
\(=\left[7^{23}.7^2\right]:7^{25}\)
\(=7^{25}:7^{25}\)
\(=1\)
\(\left(7^{23}.45+7^{23}.4\right):7^{24}\\ =\left[7^{23}.\left(45+4\right)\right]:7^{24}\\=7^{23}.7^2:7^{24}\\ =7^{24}:7^{24}\\ =1.\)
(723.45+723.4):725
= (723.(45+4)):725
= (723.49):725
= (723.72):725
= 725:725
=1
