Question

Упростить:
1) $frac{a-5}{5a+25}+frac{3a+5}{a^2+5a}$
2)$frac{m-8}{5m}:frac{m^2-64}{15m^2}$ 
3)$(frac{c-2}{c+2}-frac{c}{c-2})*frac{c+2}{2-3c}$ 

Answer 1

========================================