What is 2/11 plus 7/22?
2/11 plus 7/22 equals 1/2 (or 0.5 in decimal form). Learn the step-by-step solution to add 2/11 and 7/22 using Least Common Denominator and simplification.
Exact Answer
2/11 + 7/22 = 1/2
Simplified Fraction
1/2
Mixed Number
Proper (1/2)
Decimal Value
0.5
Percentage
50%
Step-by-Step Solution: 2/11 + 7/22
Step 1
Find the Least Common Denominator (LCD)
Notice that 22 is an exact multiple of 11 (11 × 2 = 22). The Least Common Denominator (LCD) is simply 22, meaning we only need to scale one fraction.
LCD(11, 22) = 22
Step 2
Convert to Equivalent Fractions with Common Denominator 22
Multiply the numerator and denominator of 2/11 by 2, and multiply the numerator and denominator of 7/22 by 1 so both fractions share the common base 22.
2 × 2/11 × 2 = 4/22 and 7 × 1/22 × 1 = 7/22
Step 3
Add the Numerators
Now add the numerators (4 + 7 = 11) and keep the common denominator 22 unchanged.
4 + 7/22 = 11/22
Step 4
Simplify the Fraction to Lowest Terms
Find the Greatest Common Divisor (GCD) of 11 and 22, which is 11. Divide both the numerator and denominator by 11.
11 ÷ 11/22 ÷ 11 = 1/2
Step 5
Decimal & Percentage Representation
Dividing the numerator 1 by denominator 2 yields an exact terminating decimal of 0.5 (or 50%).
1 ÷ 2 = 0.5 (50%)
Visual Representation
The diagram below illustrates 2/11 plus 7/22 visually:
+
=
Summary & Alternative Representations
| Property / Format | Value |
|---|---|
| Lowest Terms Fraction | 1/2 |
| Mixed Number Form | 1/2 |
| Decimal Form | 0.5 |
| Percentage | 50% |
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Frequently Asked Questions
What is 2/11 plus 7/22 as a fraction?
2/11 + 7/22 in simplest fraction form is 1/2.
What is 2/11 plus 7/22 as a decimal?
2/11 + 7/22 converted to a decimal is 0.5.
What is 2/11 plus 7/22 as a percentage?
2/11 + 7/22 expressed as a percentage is 50%.
Does 2/11 plus 7/22 result in a terminating or repeating decimal?
It results in an exact terminating decimal (0.5) because the denominator in simplest terms contains only prime factors 2 and/or 5.