What is 2/31 plus 2/10? (Answer: 41/155)

Exact Answer

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Problem: What is 2/31 plus 2/10?
Formula / Expression: 2/31 + 2/10
Final Answer: 41/155
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Step-by-Step Solution:

Step 1: Find the Least Common Denominator (LCD)
The denominators 31 and 10 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 31 × 10 = 310.
Working: LCD(31, 10) = 310

Step 2: Convert to Equivalent Fractions with Common Denominator 310
Multiply the numerator and denominator of 2/31 by 10, and multiply the numerator and denominator of 2/10 by 31 so both fractions share the common base 310.
Working: 2 × 10/31 × 10 = 20/310 and 2 × 31/10 × 31 = 62/310

Step 3: Add the Numerators
Now add the numerators (20 + 62 = 82) and keep the common denominator 310 unchanged.
Working: 20 + 62/310 = 82/310

Step 4: Simplify the Fraction to Lowest Terms
Find the Greatest Common Divisor (GCD) of 82 and 310, which is 2. Divide both the numerator and denominator by 2.
Working: 82 ÷ 2/310 ÷ 2 = 41/155

Step 5: Decimal & Percentage Representation
Dividing the numerator 41 by denominator 155 produces a repeating decimal (approximately 0.264516, or 26.4516%).
Working: 41 ÷ 155 = 0.264516 (26.4516%)

Key Values:
- Simplified Fraction: 41/155
- Mixed Number Form: 41/155
- Decimal Value: 0.264516
- Percentage: 26.4516%

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Solved with FractionsCalc:
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2/31 + 2/10 = 41/155

Simplified Fraction

41/155

Mixed Number

Proper (41/155)

Decimal Value

0.264516

Percentage

26.4516%

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Step-by-Step Solution: 2/31 + 2/10

Step 1

Find the Least Common Denominator (LCD)

The denominators 31 and 10 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 31 × 10 = 310.

LCD(31, 10) = 310

Step 2

Convert to Equivalent Fractions with Common Denominator 310

Multiply the numerator and denominator of 2/31 by 10, and multiply the numerator and denominator of 2/10 by 31 so both fractions share the common base 310.

2 × 10/31 × 10 = 20/310 and 2 × 31/10 × 31 = 62/310

Step 3

Add the Numerators

Now add the numerators (20 + 62 = 82) and keep the common denominator 310 unchanged.

20 + 62/310 = 82/310

Step 4

Simplify the Fraction to Lowest Terms

Find the Greatest Common Divisor (GCD) of 82 and 310, which is 2. Divide both the numerator and denominator by 2.

82 ÷ 2/310 ÷ 2 = 41/155

Step 5

Decimal & Percentage Representation

Dividing the numerator 41 by denominator 155 produces a repeating decimal (approximately 0.264516, or 26.4516%).

41 ÷ 155 = 0.264516 (26.4516%)

Visual Representation

The diagram below illustrates 2/31 plus 2/10 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`41/155`
Mixed Number Form	`41/155`
Decimal Form	`0.264516`
Percentage	`26.4516%`

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Frequently Asked Questions

What is 2/31 plus 2/10 as a fraction?

2/31 + 2/10 in simplest fraction form is 41/155.

What is 2/31 plus 2/10 as a decimal?

2/31 + 2/10 converted to a decimal is 0.264516.

What is 2/31 plus 2/10 as a percentage?

2/31 + 2/10 expressed as a percentage is 26.4516%.

Does 2/31 plus 2/10 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.264516...) because the denominator contains prime factors other than 2 and 5.