What is 5/22 plus 2/7? (Answer: 79/154)

Exact Answer

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Problem: What is 5/22 plus 2/7?
Formula / Expression: 5/22 + 2/7
Final Answer: 79/154
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Step-by-Step Solution:

Step 1: Find the Least Common Denominator (LCD)
The denominators 22 and 7 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 22 × 7 = 154.
Working: LCD(22, 7) = 154

Step 2: Convert to Equivalent Fractions with Common Denominator 154
Multiply the numerator and denominator of 5/22 by 7, and multiply the numerator and denominator of 2/7 by 22 so both fractions share the common base 154.
Working: 5 × 7/22 × 7 = 35/154 and 2 × 22/7 × 22 = 44/154

Step 3: Add the Numerators
Now add the numerators (35 + 44 = 79) and keep the common denominator 154 unchanged.
Working: 35 + 44/154 = 79/154

Step 4: Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 79 and 154 is 1, confirming that 79/154 cannot be reduced further—it is already in its simplest irreducible form.
Working: 79/154

Step 5: Decimal & Percentage Representation
Dividing the numerator 79 by denominator 154 produces a repeating decimal (approximately 0.512987, or 51.2987%).
Working: 79 ÷ 154 = 0.512987 (51.2987%)

Key Values:
- Simplified Fraction: 79/154
- Mixed Number Form: 79/154
- Decimal Value: 0.512987
- Percentage: 51.2987%

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Solved with FractionsCalc:
https://fractionscalc.com/what-is-5-22-plus-2-7/
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5/22 + 2/7 = 79/154

Simplified Fraction

79/154

Mixed Number

Proper (79/154)

Decimal Value

0.512987

Percentage

51.2987%

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Step-by-Step Solution: 5/22 + 2/7

Step 1

Find the Least Common Denominator (LCD)

The denominators 22 and 7 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 22 × 7 = 154.

LCD(22, 7) = 154

Step 2

Convert to Equivalent Fractions with Common Denominator 154

Multiply the numerator and denominator of 5/22 by 7, and multiply the numerator and denominator of 2/7 by 22 so both fractions share the common base 154.

5 × 7/22 × 7 = 35/154 and 2 × 22/7 × 22 = 44/154

Step 3

Add the Numerators

Now add the numerators (35 + 44 = 79) and keep the common denominator 154 unchanged.

35 + 44/154 = 79/154

Step 4

Check if the Fraction Can Be Simplified

The Greatest Common Divisor (GCD) of 79 and 154 is 1, confirming that 79/154 cannot be reduced further—it is already in its simplest irreducible form.

79/154

Step 5

Decimal & Percentage Representation

Dividing the numerator 79 by denominator 154 produces a repeating decimal (approximately 0.512987, or 51.2987%).

79 ÷ 154 = 0.512987 (51.2987%)

Visual Representation

The diagram below illustrates 5/22 plus 2/7 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`79/154`
Mixed Number Form	`79/154`
Decimal Form	`0.512987`
Percentage	`51.2987%`

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Frequently Asked Questions

What is 5/22 plus 2/7 as a fraction?

5/22 + 2/7 in simplest fraction form is 79/154.

What is 5/22 plus 2/7 as a decimal?

5/22 + 2/7 converted to a decimal is 0.512987.

What is 5/22 plus 2/7 as a percentage?

5/22 + 2/7 expressed as a percentage is 51.2987%.

Does 5/22 plus 2/7 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.512987...) because the denominator contains prime factors other than 2 and 5.