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15m - (3m-14)/15 > 11/5
15m - 3m + 14/15 > 11/5
15m - 3m + 14 > 11/5 × 15
15m - 3m + 14 > 33
12m > 33 - 14
12m > 19
m > 19/12 atau 1 7/12
Catatan: untuk mempermudah, dapat digunakan penyamaan penyebut