Jawabanmu

2014-08-31T14:00:47+07:00
5/7 = DE/10
7DE = 50
DE = 50/7 = 7,1
   smoga terbantu :)
3 5 3
2014-08-31T14:03:30+07:00
5/×=7/10
50=7x
x=7, 1................
1 5 1