Question

$1\frac{8}{17 } \div ( \frac{3}{17} + \frac{1}{17} )$
напишите подробно ​

Answer 1

$\dfrac{1 \cdot 17+8}{17} : \dfrac{3+1}{17}=\dfrac{25}{17}:\dfrac{4}{17}=\dfrac{25}{17} \cdot \dfrac{17}{4}=\dfrac{25}{4}=6 \dfrac 14 =6{,}25.$