Jawabanmu

2014-04-08T20:04:32+07:00
2 1/2 = 5/2 : 1 1/5 = 5/2 : 6/5 = 5/2 x 5/6 = 25/12 - 1 1/4 = 25/ 12 - 5/4 = 25/12 - 15/12 = 10/12 = 5/6
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2014-04-08T20:13:32+07:00
2 1/2 ÷ 1 1/5 - 1 1/4 =
(5/2÷6/5)-5/4   =
(5/2 ×5/6) - 5/4 =
25/12 - 5/4 = 25/12-15/12 = 10/12 = 5/6