Jawabanmu

2014-04-05T07:38:29+07:00
5 2/7 - 2 1/4 : 3 1/2 = 37/7 - 9/4 : 7/2 = 37/7 - 9/4 × 2/7 = 27/7 - 9/14 = 74/14 - 9/14 = 65/14 = 4 9/14