What is 3/13 plus 8/13?
3/13 plus 8/13 equals 11/13 (or 0.846154 in decimal form). Learn the step-by-step solution to add 3/13 and 8/13 using Least Common Denominator and simplification.
Exact Answer
3/13 + 8/13 = 11/13
Simplified Fraction
11/13
Mixed Number
Proper (11/13)
Decimal Value
0.846154
Percentage
84.6154%
Step-by-Step Solution: 3/13 + 8/13
Step 1
Check the Denominators (Like Fractions)
Both fractions already share the identical denominator (13). Because these are like fractions, no conversion to a common denominator is required—we directly add their numerators while keeping the denominator 13.
3/13 + 8/13
Step 2
Add the Numerators
Now add the numerators (3 + 8 = 11) and keep the common denominator 13 unchanged.
3 + 8/13 = 11/13
Step 3
Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 11 and 13 is 1, confirming that 11/13 cannot be reduced further—it is already in its simplest irreducible form.
11/13
Step 4
Decimal & Percentage Representation
Dividing the numerator 11 by denominator 13 produces a repeating decimal (approximately 0.846154, or 84.6154%).
11 ÷ 13 = 0.846154 (84.6154%)
Visual Representation
The diagram below illustrates 3/13 plus 8/13 visually:
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Summary & Alternative Representations
| Property / Format | Value |
|---|---|
| Lowest Terms Fraction | 11/13 |
| Mixed Number Form | 11/13 |
| Decimal Form | 0.846154 |
| Percentage | 84.6154% |
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Frequently Asked Questions
What is 3/13 plus 8/13 as a fraction?
3/13 + 8/13 in simplest fraction form is 11/13.
What is 3/13 plus 8/13 as a decimal?
3/13 + 8/13 converted to a decimal is 0.846154.
What is 3/13 plus 8/13 as a percentage?
3/13 + 8/13 expressed as a percentage is 84.6154%.
Does 3/13 plus 8/13 result in a terminating or repeating decimal?
It results in a repeating decimal (approximately 0.846154...) because the denominator contains prime factors other than 2 and 5.