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1. 4 3/4 is closer to 1, so 3 + 1 = 4
2. 1 11 is more than half of 20, so 11/20 is closer to 1.
3. 2 1/2 or more, we round up, so we round up to 1. 1 + 1 = 2
4. 4 2/5 is less than 1/2, so round down—0 + 4 = 4
5. 7 7/10 is close to 1, so 6 + 1 = 7
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