Question

\(\frac{0,8:\left(\frac{4}{5}\cdot1,25\right)}{0,64-\frac{1}{25}}+\left(1,2\cdot0,5\right):\frac{3}{5}\)

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Answer 1

\(\frac{0,8\div\left(\frac{4}{5}\cdot1,25\right)}{0,64-\frac{1}{25}}+\left(1,2\cdot0,5\right)\div\frac{3}{5}\)

\(=\frac{0,8\div\left(0,8\cdot1,25\right)}{0,64-0,04}+\left(1,2\cdot0,5\right)\div0,6\)

\(=\frac{0,8\div1}{0,6}+0,6\div0,6\)

\(=\frac{0,8}{0,6}+1\)

\(=\frac{4}{3}+1=\frac{7}{3}\)

Answer 2

\(\frac{0,8\div\left(\frac{4}{5}\cdot1,25\right)}{0,64-\frac{1}{25}}+\left(1,2\cdot0,5\right)\div\frac{3}{5}\)

\(=\frac{0,8\div\left(0,8.1,25\right)}{0,64-0,04}+\left(1,2.0,5\right)\div0,6\)

\(=\frac{0,8\div1}{0,6}+0,6\div0,6\)

\(=\frac{4}{3}+1\)

\(=\frac{7}{3}\)