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Find the sum
1. 2/5 + 2 4/8 =
2. 3 1/3 + 1 1/8 + 2 1/2 =
3. 2 1/3 + 1 3/10 + 3/4 = 4. 1 3/5 + 2/6 + 8 9/12 =
5. 3/7 + 2/5 + 4 3/10 =