What is 1 1/2 plus 1 1/2? (Answer: 3)

Exact Answer

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Problem: What is 1 1/2 plus 1 1/2?
Formula / Expression: 1 1/2 + 1 1/2
Final Answer: 3
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Step-by-Step Solution:

Step 1: Convert Mixed Numbers to Improper Fractions
First, convert both mixed numbers into improper fractions using the formula (Whole × Denominator + Numerator) / Denominator:
• 1 1/2 = (1 × 2 + 1)/2 = 3/2
• 1 1/2 = (1 × 2 + 1)/2 = 3/2
Working: 1 1/2 = 3/2 and 1 1/2 = 3/2

Step 2: Check the Denominators (Like Fractions)
Both fractions already share the identical denominator (2). Because these are like fractions, no conversion to a common denominator is required—we directly add their numerators while keeping the denominator 2.
Working: 3/2 + 3/2

Step 3: Add the Numerators
Now add the numerators (3 + 3 = 6) and keep the common denominator 2 unchanged.
Working: 3 + 3/2 = 6/2

Step 4: Simplify to an Exact Whole Number
Notice that the numerator (6) is completely divisible by the denominator (2). Dividing 6 by 2 yields the whole number 3 with zero remainder.
Working: 6/2 = 3

Step 5: Decimal & Percentage Representation
Dividing the numerator 3 by denominator 1 yields an exact terminating decimal of 3 (or 300%).
Working: 3 ÷ 1 = 3 (300%)

Key Values:
- Simplified Fraction: 3
- Mixed Number Form: 3
- Decimal Value: 3
- Percentage: 300%

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Solved with FractionsCalc:
https://fractionscalc.com/what-is-1-1-2-plus-1-1-2/
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11/2 + 11/2 = 3

Simplified Fraction

Mixed Number

Decimal Value

Percentage

300%

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Step-by-Step Solution: 1 1/2 + 1 1/2

Step 1

Convert Mixed Numbers to Improper Fractions

First, convert both mixed numbers into improper fractions using the formula (Whole × Denominator + Numerator) / Denominator:
• 1 1/2 = (1 × 2 + 1)/2 = 3/2
• 1 1/2 = (1 × 2 + 1)/2 = 3/2

11/2 = 3/2 and 11/2 = 3/2

Step 2

Check the Denominators (Like Fractions)

Both fractions already share the identical denominator (2). Because these are like fractions, no conversion to a common denominator is required—we directly add their numerators while keeping the denominator 2.

3/2 + 3/2

Step 3

Add the Numerators

Now add the numerators (3 + 3 = 6) and keep the common denominator 2 unchanged.

3 + 3/2 = 6/2

Step 4

Simplify to an Exact Whole Number

Notice that the numerator (6) is completely divisible by the denominator (2). Dividing 6 by 2 yields the whole number 3 with zero remainder.

6/2 = 3

Step 5

Decimal & Percentage Representation

Dividing the numerator 3 by denominator 1 yields an exact terminating decimal of 3 (or 300%).

3 ÷ 1 = 3 (300%)

Visual Representation

The diagram below illustrates 1 1/2 plus 1 1/2 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`3`
Mixed Number Form	`3`
Decimal Form	`3`
Percentage	`300%`

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Frequently Asked Questions

What is 1 1/2 plus 1 1/2 as a fraction?

1 1/2 + 1 1/2 in simplest fraction form is 3.

What is 1 1/2 plus 1 1/2 as a decimal?

1 1/2 + 1 1/2 converted to a decimal is 3.

What is 1 1/2 plus 1 1/2 as a percentage?

1 1/2 + 1 1/2 expressed as a percentage is 300%.

Is the answer to 1 1/2 plus 1 1/2 a whole number?

Yes, 1 1/2 + 1 1/2 simplifies completely to the whole number 3 with no remaining fractional part.