2,25+25%+1 1/2=....... bantuin donk yg baik. pakai cara ya. tolong?

2,25 + 25% + 1 1/2 
= (2,25 + 25/100) + 3/2
= (2,25 + 0,25) + 15/10
= 2,50 + 1,5
= 4