12/7 + 3/7 as a fraction

Learn how to find what is 12/7 plus 3/7 in fraction form just in a few minutes. We have covered the easiest method to write 12/7 + 3/7 as a fraction and decimal.

Summary: 12/7 plus 3/7 = 15/7
Since both fractions have equal/common denominator, 12/7 plus 3/7 is a like fractions addition. Adding fractions with common denominator like 12/7 and 3/7, and expressing it in the fraction form is a very simple process. For like fraction addition, directly add the numerators (12 + 3) 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 (12/7) + (3/7). Because we can take common denominators out when simplifying the fraction addition expression (12/7) + (3/7), so the expression becomes 1/7 (12 + 3). By simplifying further, the numerator becomes (12 + 3) = 15, and the denominator remains the same as 7. Therefore, 12/7 + 3/7 as a fraction is 15/7.

CALCULATION: 12/7 + 3/7 as a fraction
12/7 + 3/7 = (?)
12/7 + 3/7 = (12 + 3)/7
= 15/7
12/7 + 3/7 = 15/7
12/7 plus 3/7 as a fraction is 15/7.

where
12/7 is a improper fraction as an addend,
3/7 is a proper fraction as an addend,
15/7 is the sum of 12/7 and 3/7.

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12/7 plus 3/7 as a decimal
12/7 + 3/7 = 15/7
15/7 = 2.1429
(12/7) + (3/7) as a decimal is 2.1429

where
2.1429 is the sum of 12/7 and 3/7.