What is 1/9 plus 9/22?
1/9 plus 9/22 equals 103/198 (or 0.520202 in decimal form). Learn the step-by-step solution to add 1/9 and 9/22 using Least Common Denominator and simplification.
Exact Answer
1/9 + 9/22 = 103/198
Simplified Fraction
103/198
Mixed Number
Proper (103/198)
Decimal Value
0.520202
Percentage
52.0202%
Step-by-Step Solution: 1/9 + 9/22
Step 1
Find the Least Common Denominator (LCD)
The denominators 9 and 22 are coprime (they share no common factors other than 1). Therefore, their Least Common Denominator (LCD) is simply their direct product: 9 × 22 = 198.
LCD(9, 22) = 198
Step 2
Convert to Equivalent Fractions with Common Denominator 198
Multiply the numerator and denominator of 1/9 by 22, and multiply the numerator and denominator of 9/22 by 9 so both fractions share the common base 198.
1 × 22/9 × 22 = 22/198 and 9 × 9/22 × 9 = 81/198
Step 3
Add the Numerators
Now add the numerators (22 + 81 = 103) and keep the common denominator 198 unchanged.
22 + 81/198 = 103/198
Step 4
Check if the Fraction Can Be Simplified
The Greatest Common Divisor (GCD) of 103 and 198 is 1, confirming that 103/198 cannot be reduced further—it is already in its simplest irreducible form.
103/198
Step 5
Decimal & Percentage Representation
Dividing the numerator 103 by denominator 198 produces a repeating decimal (approximately 0.520202, or 52.0202%).
103 ÷ 198 = 0.520202 (52.0202%)
Visual Representation
The diagram below illustrates 1/9 plus 9/22 visually:
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Summary & Alternative Representations
| Property / Format | Value |
|---|---|
| Lowest Terms Fraction | 103/198 |
| Mixed Number Form | 103/198 |
| Decimal Form | 0.520202 |
| Percentage | 52.0202% |
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Frequently Asked Questions
What is 1/9 plus 9/22 as a fraction?
1/9 + 9/22 in simplest fraction form is 103/198.
What is 1/9 plus 9/22 as a decimal?
1/9 + 9/22 converted to a decimal is 0.520202.
What is 1/9 plus 9/22 as a percentage?
1/9 + 9/22 expressed as a percentage is 52.0202%.
Does 1/9 plus 9/22 result in a terminating or repeating decimal?
It results in a repeating decimal (approximately 0.520202...) because the denominator contains prime factors other than 2 and 5.