3 1/2+0,75+125% adlah

1/2+75/100=250/200:50/50=5/4+125/100=1000/400:50/50=20/8:4/4=5/2
maaf kalo salah

3 1/2 = 7/2 = 3,5
0,75 = 0,75
125% = 1,25

3,5 + 0,75 + 1,25
= 5,50
= 550%
= 5 1/2