What is 2/30 plus 2/9? (Answer: 13/45)

Exact Answer

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Problem: What is 2/30 plus 2/9?
Formula / Expression: 2/30 + 2/9
Final Answer: 13/45
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Step-by-Step Solution:

Step 1: Find the Least Common Denominator (LCD)
The denominators 30 and 9 share a common factor (GCD = 3). Finding their Least Common Multiple gives an LCD of 90 (which is smaller than their product 30 × 9 = 270, keeping the calculation simpler).
Working: LCD(30, 9) = 90

Step 2: Convert to Equivalent Fractions with Common Denominator 90
Multiply the numerator and denominator of 2/30 by 3, and multiply the numerator and denominator of 2/9 by 10 so both fractions share the common base 90.
Working: 2 × 3/30 × 3 = 6/90 and 2 × 10/9 × 10 = 20/90

Step 3: Add the Numerators
Now add the numerators (6 + 20 = 26) and keep the common denominator 90 unchanged.
Working: 6 + 20/90 = 26/90

Step 4: Simplify the Fraction to Lowest Terms
Find the Greatest Common Divisor (GCD) of 26 and 90, which is 2. Divide both the numerator and denominator by 2.
Working: 26 ÷ 2/90 ÷ 2 = 13/45

Step 5: Decimal & Percentage Representation
Dividing the numerator 13 by denominator 45 produces a repeating decimal (approximately 0.288889, or 28.8889%).
Working: 13 ÷ 45 = 0.288889 (28.8889%)

Key Values:
- Simplified Fraction: 13/45
- Mixed Number Form: 13/45
- Decimal Value: 0.288889
- Percentage: 28.8889%

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Solved with FractionsCalc:
https://fractionscalc.com/what-is-2-30-plus-2-9/
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2/30 + 2/9 = 13/45

Simplified Fraction

13/45

Mixed Number

Proper (13/45)

Decimal Value

0.288889

Percentage

28.8889%

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Step-by-Step Solution: 2/30 + 2/9

Step 1

Find the Least Common Denominator (LCD)

The denominators 30 and 9 share a common factor (GCD = 3). Finding their Least Common Multiple gives an LCD of 90 (which is smaller than their product 30 × 9 = 270, keeping the calculation simpler).

LCD(30, 9) = 90

Step 2

Convert to Equivalent Fractions with Common Denominator 90

Multiply the numerator and denominator of 2/30 by 3, and multiply the numerator and denominator of 2/9 by 10 so both fractions share the common base 90.

2 × 3/30 × 3 = 6/90 and 2 × 10/9 × 10 = 20/90

Step 3

Add the Numerators

Now add the numerators (6 + 20 = 26) and keep the common denominator 90 unchanged.

6 + 20/90 = 26/90

Step 4

Simplify the Fraction to Lowest Terms

Find the Greatest Common Divisor (GCD) of 26 and 90, which is 2. Divide both the numerator and denominator by 2.

26 ÷ 2/90 ÷ 2 = 13/45

Step 5

Decimal & Percentage Representation

Dividing the numerator 13 by denominator 45 produces a repeating decimal (approximately 0.288889, or 28.8889%).

13 ÷ 45 = 0.288889 (28.8889%)

Visual Representation

The diagram below illustrates 2/30 plus 2/9 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`13/45`
Mixed Number Form	`13/45`
Decimal Form	`0.288889`
Percentage	`28.8889%`

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Frequently Asked Questions

What is 2/30 plus 2/9 as a fraction?

2/30 + 2/9 in simplest fraction form is 13/45.

What is 2/30 plus 2/9 as a decimal?

2/30 + 2/9 converted to a decimal is 0.288889.

What is 2/30 plus 2/9 as a percentage?

2/30 + 2/9 expressed as a percentage is 28.8889%.

Does 2/30 plus 2/9 result in a terminating or repeating decimal?

It results in a repeating decimal (approximately 0.288889...) because the denominator contains prime factors other than 2 and 5.