11/8 + 9/8 as a fraction

Learn how to find what is 11/8 plus 9/8 in fraction form just in a few minutes. We have covered the easiest method to write 11/8 + 9/8 as a fraction and decimal.

Summary: 11/8 plus 9/8 = 5/2
Since both fractions have equal/common denominator, 11/8 plus 9/8 is a like fractions addition. Adding fractions with common denominator like 11/8 and 9/8, and expressing it in the fraction form is a very simple process. For like fraction addition, directly add the numerators (11 + 9) together while keeping the common denominator as it is. You may wonder why the numerators alone are being added and not the denominators in the expression (11/8) + (9/8). Because we can take common denominators out when simplifying the fraction addition expression (11/8) + (9/8), so the expression becomes 1/8 (11 + 9). By simplifying further, the numerator becomes (11 + 9) = 20, and the denominator remains the same as 8. Therefore, 11/8 + 9/8 as a fraction is 5/2.

CALCULATION: 11/8 + 9/8 as a fraction
11/8 + 9/8 = (?)
11/8 + 9/8 = (11 + 9)/8
= 20/8
= (4 x 5)/(4 x 2)
= 5/2
11/8 + 9/8 = 5/2
11/8 plus 9/8 as a fraction is 5/2.

where
11/8 is a improper fraction as an addend,
9/8 is a improper fraction as an addend,
5/2 is the sum of 11/8 and 9/8.

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11/8 plus 9/8 as a decimal
11/8 + 9/8 = 5/2
5/2 = 2.5
(11/8) + (9/8) as a decimal is 2.5

where
2.5 is the sum of 11/8 and 9/8.