tolong ya kak beserta caranya

1.)12%=12/100:4=3/25
Pecahan paling sederhana =3/25
12%=0,12
Desimal=0,12

2.)2/5×20=40%
40%=0,40

3.)0,46=46%
46%=46/100:2=23/50

4.)87,5%=87,5

5.)15/4×25=375/100=375%
375%=3,75