Tentukan hasil dari:1. 2/4x + 3/5x =2. 3/5a² – 2/2b=

2/4 x + 3/5 x
= 10/20 x + 12/20 x
= 22/20 x
= 11/10 x
3/5 a² – 2/2 b
= 3/5 a² – b