Compute the sum of 5 1/8 inches and 2 3/4 inches.

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Multiple Choice

Compute the sum of 5 1/8 inches and 2 3/4 inches.

Explanation:
The key idea here is adding mixed numbers by using a common denominator for the fractional parts. Break it down: add the whole numbers first: 5 + 2 = 7. For the fractions, convert 3/4 to eighths so both fractions share a denominator: 3/4 = 6/8, and you already have 1/8. So 1/8 + 6/8 = 7/8. Put the pieces together: 7 and 7/8, which is 7 7/8 inches.

The key idea here is adding mixed numbers by using a common denominator for the fractional parts. Break it down: add the whole numbers first: 5 + 2 = 7. For the fractions, convert 3/4 to eighths so both fractions share a denominator: 3/4 = 6/8, and you already have 1/8. So 1/8 + 6/8 = 7/8. Put the pieces together: 7 and 7/8, which is 7 7/8 inches.

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