Question

2
У + у
---------- =
2
У


2
А - 2а
----------- =
2
А - 4

Сократите дробь

Answer 1

$\frac{ y^{2}+y }{y ^{2} } = \frac{y(y+1)}{y ^{2} }= \frac{y+1}{y} \\\\ \frac{ a^{2}-2a }{ a^{2}-4 }= \frac{a(a-2)}{(a-2)(a+2)}= \frac{a}{a+2}$