What is 5/26 plus 3/13? (Answer: 11/26)

Exact Answer

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Problem: What is 5/26 plus 3/13?
Formula / Expression: 5/26 + 3/13
Final Answer: 11/26
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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 5/26 by 1, and multiply the numerator and denominator of 3/13 by 2 so both fractions share the common base 26.
Working: 5 × 1/26 × 1 = 5/26 and 3 × 2/13 × 2 = 6/26

Step 3: Add the Numerators
Now add the numerators (5 + 6 = 11) and keep the common denominator 26 unchanged.
Working: 5 + 6/26 = 11/26

Step 4: Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 11 and 26 is 1, confirming that 11/26 cannot be reduced further—it is already in its simplest irreducible form.
Working: 11/26

Step 5: Decimal & Percentage Representation
Dividing the numerator 11 by denominator 26 produces a repeating decimal (approximately 0.423077, or 42.3077%).
Working: 11 ÷ 26 = 0.423077 (42.3077%)

Key Values:
- Simplified Fraction: 11/26
- Mixed Number Form: 11/26
- Decimal Value: 0.423077
- Percentage: 42.3077%

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Solved with FractionsCalc:
https://fractionscalc.com/what-is-5-26-plus-3-13/
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5/26 + 3/13 = 11/26

Simplified Fraction

11/26

Mixed Number

Proper (11/26)

Decimal Value

0.423077

Percentage

42.3077%

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Step-by-Step Solution: 5/26 + 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 5/26 by 1, and multiply the numerator and denominator of 3/13 by 2 so both fractions share the common base 26.

5 × 1/26 × 1 = 5/26 and 3 × 2/13 × 2 = 6/26

Step 3

Add the Numerators

Now add the numerators (5 + 6 = 11) and keep the common denominator 26 unchanged.

5 + 6/26 = 11/26

Step 4

Check if the Fraction Can Be Simplified

The Greatest Common Divisor (GCD) of 11 and 26 is 1, confirming that 11/26 cannot be reduced further—it is already in its simplest irreducible form.

11/26

Step 5

Decimal & Percentage Representation

Dividing the numerator 11 by denominator 26 produces a repeating decimal (approximately 0.423077, or 42.3077%).

11 ÷ 26 = 0.423077 (42.3077%)

Visual Representation

The diagram below illustrates 5/26 plus 3/13 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`11/26`
Mixed Number Form	`11/26`
Decimal Form	`0.423077`
Percentage	`42.3077%`

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Frequently Asked Questions

What is 5/26 plus 3/13 as a fraction?

5/26 + 3/13 in simplest fraction form is 11/26.

What is 5/26 plus 3/13 as a decimal?

5/26 + 3/13 converted to a decimal is 0.423077.

What is 5/26 plus 3/13 as a percentage?

5/26 + 3/13 expressed as a percentage is 42.3077%.

Does 5/26 plus 3/13 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.423077...) because the denominator contains prime factors other than 2 and 5.