Jawabanmu

2014-01-24T09:16:30+07:00
Pecahan biasa: 52/40 diperkecil = 13/10 
Desimal: 1,3
persen :130%
2014-01-24T09:17:01+07:00
1 \frac{12}{40}  
pecahan biasa =  \frac{52}{40}  \frac{13}{10}
desimal = 1,3
persen = 130%