What is 7/26 plus 4/13? (Answer: 15/26)

Exact Answer

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Problem: What is 7/26 plus 4/13?
Formula / Expression: 7/26 + 4/13
Final Answer: 15/26
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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 7/26 by 1, and multiply the numerator and denominator of 4/13 by 2 so both fractions share the common base 26.
Working: 7 × 1/26 × 1 = 7/26 and 4 × 2/13 × 2 = 8/26

Step 3: Add the Numerators
Now add the numerators (7 + 8 = 15) and keep the common denominator 26 unchanged.
Working: 7 + 8/26 = 15/26

Step 4: Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 15 and 26 is 1, confirming that 15/26 cannot be reduced further—it is already in its simplest irreducible form.
Working: 15/26

Step 5: Decimal & Percentage Representation
Dividing the numerator 15 by denominator 26 produces a repeating decimal (approximately 0.576923, or 57.6923%).
Working: 15 ÷ 26 = 0.576923 (57.6923%)

Key Values:
- Simplified Fraction: 15/26
- Mixed Number Form: 15/26
- Decimal Value: 0.576923
- Percentage: 57.6923%

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Solved with FractionsCalc:
https://fractionscalc.com/what-is-7-26-plus-4-13/
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7/26 + 4/13 = 15/26

Simplified Fraction

15/26

Mixed Number

Proper (15/26)

Decimal Value

0.576923

Percentage

57.6923%

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Step-by-Step Solution: 7/26 + 4/13

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 7/26 by 1, and multiply the numerator and denominator of 4/13 by 2 so both fractions share the common base 26.

7 × 1/26 × 1 = 7/26 and 4 × 2/13 × 2 = 8/26

Step 3

Add the Numerators

Now add the numerators (7 + 8 = 15) and keep the common denominator 26 unchanged.

7 + 8/26 = 15/26

Step 4

Check if the Fraction Can Be Simplified

The Greatest Common Divisor (GCD) of 15 and 26 is 1, confirming that 15/26 cannot be reduced further—it is already in its simplest irreducible form.

15/26

Step 5

Decimal & Percentage Representation

Dividing the numerator 15 by denominator 26 produces a repeating decimal (approximately 0.576923, or 57.6923%).

15 ÷ 26 = 0.576923 (57.6923%)

Visual Representation

The diagram below illustrates 7/26 plus 4/13 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`15/26`
Mixed Number Form	`15/26`
Decimal Form	`0.576923`
Percentage	`57.6923%`

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Frequently Asked Questions

What is 7/26 plus 4/13 as a fraction?

7/26 + 4/13 in simplest fraction form is 15/26.

What is 7/26 plus 4/13 as a decimal?

7/26 + 4/13 converted to a decimal is 0.576923.

What is 7/26 plus 4/13 as a percentage?

7/26 + 4/13 expressed as a percentage is 57.6923%.

Does 7/26 plus 4/13 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.576923...) because the denominator contains prime factors other than 2 and 5.