What is 2/20 plus 11/13? (Answer: 123/130)

Exact Answer

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Problem: What is 2/20 plus 11/13?
Formula / Expression: 2/20 + 11/13
Final Answer: 123/130
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Step-by-Step Solution:

Step 1: Find the Least Common Denominator (LCD)
The denominators 20 and 13 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 20 × 13 = 260.
Working: LCD(20, 13) = 260

Step 2: Convert to Equivalent Fractions with Common Denominator 260
Multiply the numerator and denominator of 2/20 by 13, and multiply the numerator and denominator of 11/13 by 20 so both fractions share the common base 260.
Working: 2 × 13/20 × 13 = 26/260 and 11 × 20/13 × 20 = 220/260

Step 3: Add the Numerators
Now add the numerators (26 + 220 = 246) and keep the common denominator 260 unchanged.
Working: 26 + 220/260 = 246/260

Step 4: Simplify the Fraction to Lowest Terms
Find the Greatest Common Divisor (GCD) of 246 and 260, which is 2. Divide both the numerator and denominator by 2.
Working: 246 ÷ 2/260 ÷ 2 = 123/130

Step 5: Decimal & Percentage Representation
Dividing the numerator 123 by denominator 130 produces a repeating decimal (approximately 0.946154, or 94.6154%).
Working: 123 ÷ 130 = 0.946154 (94.6154%)

Key Values:
- Simplified Fraction: 123/130
- Mixed Number Form: 123/130
- Decimal Value: 0.946154
- Percentage: 94.6154%

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Solved with FractionsCalc:
https://fractionscalc.com/what-is-2-20-plus-11-13/
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2/20 + 11/13 = 123/130

Simplified Fraction

123/130

Mixed Number

Proper (123/130)

Decimal Value

0.946154

Percentage

94.6154%

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Step-by-Step Solution: 2/20 + 11/13

Step 1

Find the Least Common Denominator (LCD)

The denominators 20 and 13 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 20 × 13 = 260.

LCD(20, 13) = 260

Step 2

Convert to Equivalent Fractions with Common Denominator 260

Multiply the numerator and denominator of 2/20 by 13, and multiply the numerator and denominator of 11/13 by 20 so both fractions share the common base 260.

2 × 13/20 × 13 = 26/260 and 11 × 20/13 × 20 = 220/260

Step 3

Add the Numerators

Now add the numerators (26 + 220 = 246) and keep the common denominator 260 unchanged.

26 + 220/260 = 246/260

Step 4

Simplify the Fraction to Lowest Terms

Find the Greatest Common Divisor (GCD) of 246 and 260, which is 2. Divide both the numerator and denominator by 2.

246 ÷ 2/260 ÷ 2 = 123/130

Step 5

Decimal & Percentage Representation

Dividing the numerator 123 by denominator 130 produces a repeating decimal (approximately 0.946154, or 94.6154%).

123 ÷ 130 = 0.946154 (94.6154%)

Visual Representation

The diagram below illustrates 2/20 plus 11/13 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`123/130`
Mixed Number Form	`123/130`
Decimal Form	`0.946154`
Percentage	`94.6154%`

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Frequently Asked Questions

What is 2/20 plus 11/13 as a fraction?

2/20 + 11/13 in simplest fraction form is 123/130.

What is 2/20 plus 11/13 as a decimal?

2/20 + 11/13 converted to a decimal is 0.946154.

What is 2/20 plus 11/13 as a percentage?

2/20 + 11/13 expressed as a percentage is 94.6154%.

Does 2/20 plus 11/13 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.946154...) because the denominator contains prime factors other than 2 and 5.