Jawabanmu

2014-02-14T20:11:52+07:00
=42 per 18 : 1,3
=3 per 7 kali 1,3
=3,9 per 7

insyaAllah itu
2014-02-14T20:16:16+07:00
2/3 x 2 1/6 : 1,3 =
2/3 x 13/6 : 13/10 =
26/18 : 13/10=
26/18 x 10/13=
260/234= 10/9 = 1 1/9