Question

1)a =2*3*5 и б = 2*2* 5
2)а=2*3*3*5 и b=2*3*3*7
3)a=2*3*5*5 и b=3*3*5*5

Answer 1

1)30+20=50
2)90+126=216
3)150+225=375

Answer 2

Спасибо !

Answer 3

лол