14/15
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12 fifteenths (sure?)19 fifteenths = 10 fifteenths (2/3) + 9 fifteenths (3/5)
1/3 + 2/5 = 5/15 + 6/15 = 11/15 (Eleven fifteenths)
3/15 + 2/5 = 3/5 or 0.6
2/5 as it is same as 6/15 multiply both parts by 3
(3/4 + 2/5) x 5 1/3 = 6 2/15, or six and two fifteenths.