What is 3/26 plus 3/13? (Answer: 9/26)

Exact Answer

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Problem: What is 3/26 plus 3/13?
Formula / Expression: 3/26 + 3/13
Final Answer: 9/26
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Step-by-Step Solution:

Step 1: Find the Least Common Denominator (LCD)
Notice that 26 is an exact multiple of 13 (13 × 2 = 26). The Least Common Denominator (LCD) is simply 26, meaning we only need to scale one fraction.
Working: LCD(26, 13) = 26

Step 2: Convert to Equivalent Fractions with Common Denominator 26
Multiply the numerator and denominator of 3/26 by 1, and multiply the numerator and denominator of 3/13 by 2 so both fractions share the common base 26.
Working: 3 × 1/26 × 1 = 3/26 and 3 × 2/13 × 2 = 6/26

Step 3: Add the Numerators
Now add the numerators (3 + 6 = 9) and keep the common denominator 26 unchanged.
Working: 3 + 6/26 = 9/26

Step 4: Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 9 and 26 is 1, confirming that 9/26 cannot be reduced further—it is already in its simplest irreducible form.
Working: 9/26

Step 5: Decimal & Percentage Representation
Dividing the numerator 9 by denominator 26 produces a repeating decimal (approximately 0.346154, or 34.6154%).
Working: 9 ÷ 26 = 0.346154 (34.6154%)

Key Values:
- Simplified Fraction: 9/26
- Mixed Number Form: 9/26
- Decimal Value: 0.346154
- Percentage: 34.6154%

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Solved with FractionsCalc:
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3/26 + 3/13 = 9/26

Simplified Fraction

9/26

Mixed Number

Proper (9/26)

Decimal Value

0.346154

Percentage

34.6154%

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Step-by-Step Solution: 3/26 + 3/13

Step 1

Find the Least Common Denominator (LCD)

Notice that 26 is an exact multiple of 13 (13 × 2 = 26). The Least Common Denominator (LCD) is simply 26, meaning we only need to scale one fraction.

LCD(26, 13) = 26

Step 2

Convert to Equivalent Fractions with Common Denominator 26

Multiply the numerator and denominator of 3/26 by 1, and multiply the numerator and denominator of 3/13 by 2 so both fractions share the common base 26.

3 × 1/26 × 1 = 3/26 and 3 × 2/13 × 2 = 6/26

Step 3

Add the Numerators

Now add the numerators (3 + 6 = 9) and keep the common denominator 26 unchanged.

3 + 6/26 = 9/26

Step 4

Check if the Fraction Can Be Simplified

The Greatest Common Divisor (GCD) of 9 and 26 is 1, confirming that 9/26 cannot be reduced further—it is already in its simplest irreducible form.

9/26

Step 5

Decimal & Percentage Representation

Dividing the numerator 9 by denominator 26 produces a repeating decimal (approximately 0.346154, or 34.6154%).

9 ÷ 26 = 0.346154 (34.6154%)

Visual Representation

The diagram below illustrates 3/26 plus 3/13 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`9/26`
Mixed Number Form	`9/26`
Decimal Form	`0.346154`
Percentage	`34.6154%`

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Frequently Asked Questions

What is 3/26 plus 3/13 as a fraction?

3/26 + 3/13 in simplest fraction form is 9/26.

What is 3/26 plus 3/13 as a decimal?

3/26 + 3/13 converted to a decimal is 0.346154.

What is 3/26 plus 3/13 as a percentage?

3/26 + 3/13 expressed as a percentage is 34.6154%.

Does 3/26 plus 3/13 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.346154...) because the denominator contains prime factors other than 2 and 5.