1/9+1/15= Sos sos 535

Question

1/9+1/15=






Sos sos 535

Answer 1

Приводим к общему знаменателю - 45.
5/45 + 3/45= 8/45

Answer 2

1/9+1/15=1/(3*3)+1/(3*5)=(5+3)/3*3*5=8/45