5/6+4/9-5/6 pas di jwb sama caranya

5/6 + 4/9 - 5/6
15/18 + 8/18 - 15/18
23/18 - 15/18
8/18 = 4/9

5/6+4/9-5/6=(5/6+4/8)-5/6=(5+4/6×8)-5/6=9/48-5/6=9-5/48-6=4/42=2/21

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