4 per 5 rim +225 lembar=......rim,pakai jalannya

1 rim = 500 lembar
1 lembar = 1/500 rim

4/5 rim + 225 lembar
= 4/5 rim + ( 225/500 )
= 4/5 rim + 9/20 rim
= 16/20 rim + 9/20 rim
= 25/20 rim
= 5/4 rim
= 1 1/4 rim

1 rim = 500 lembar
4/5× 500 lembar + 225 lembar
=400 + 225 lembar
= 625 lembar
= 625/ 500 rim
= 1 1/4 rim