\(10:0,5+4:0,25+8:0,125\\ =10:\dfrac{1}{2}+4:\dfrac{1}{4}+8:\dfrac{1}{8}\\ =10\times2+4\times4+8\times8\\ =20+16+64\\ =20+\left(16+64\right)\\ =20+80\\ =100\)
\(10:0,5+4:0,25+8:0,125\)
\(=10:\dfrac{1}{2}+4:\dfrac{1}{4}+8:\dfrac{1}{8}\)
\(=10\times2+4\times4+8\times8\)
\(=20+16+64\)
\(=100\)