Question

Представь в виде дроби (r/4+r/11)⋅1/r2.

Ответ:

Answer 1

$\Big(\dfrac{r}{4}+\dfrac{r}{11}\Big)\cdot\dfrac{1}{r^{2} }=\dfrac{11r+4r}{44}\cdot\dfrac{1}{r^{2} }=\dfrac{15r}{44r^{2} }=\boxed{\dfrac{15}{44r}}$