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

Exact Answer

==================================================
Problem: What is 1/3 plus 2/3?
Formula / Expression: 1/3 + 2/3
Final Answer: 1
==================================================

Step-by-Step Solution:

Step 1: Check the Denominators (Like Fractions)
Both fractions already share the identical denominator (3). Because these are like fractions, no conversion to a common denominator is required—we directly add their numerators while keeping the denominator 3.
Working: 1/3 + 2/3

Step 2: Add the Numerators
Now add the numerators (1 + 2 = 3) and keep the common denominator 3 unchanged.
Working: 1 + 2/3 = 3/3

Step 3: Simplify to an Exact Whole Number
Notice that the numerator (3) is completely divisible by the denominator (3). Dividing 3 by 3 yields the whole number 1 with zero remainder.
Working: 3/3 = 1

Step 4: Decimal & Percentage Representation
Dividing the numerator 1 by denominator 1 yields an exact terminating decimal of 1 (or 100%).
Working: 1 ÷ 1 = 1 (100%)

Key Values:
- Simplified Fraction: 1
- Mixed Number Form: 1
- Decimal Value: 1
- Percentage: 100%

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

1/3 + 2/3 = 1

Simplified Fraction

Mixed Number

Decimal Value

Percentage

100%

Reduce / Convert Fraction:

Convert Fraction:

Enter Decimal Number:

Enter Percentage: %

What is % of

From Value: To Value:

Simplify Ratio: :

First Number: Second Number:

Find All Factors of:

Dividend: ÷ Divisor:

√ Square Root of: OR Power (x^y): ^{^}

x² + x + = 0

Number (n! & log):

Circle Radius (r):

Side a: Side b:

Angle (Degrees): °

Numbers (comma separated):

Total Items (n): Choose (r):

Decimal Number:

Number (1–3999):

Step-by-Step Solution: 1/3 + 2/3

Step 1

Check the Denominators (Like Fractions)

Both fractions already share the identical denominator (3). Because these are like fractions, no conversion to a common denominator is required—we directly add their numerators while keeping the denominator 3.

1/3 + 2/3

Step 2

Add the Numerators

Now add the numerators (1 + 2 = 3) and keep the common denominator 3 unchanged.

1 + 2/3 = 3/3

Step 3

Simplify to an Exact Whole Number

Notice that the numerator (3) is completely divisible by the denominator (3). Dividing 3 by 3 yields the whole number 1 with zero remainder.

3/3 = 1

Step 4

Decimal & Percentage Representation

Dividing the numerator 1 by denominator 1 yields an exact terminating decimal of 1 (or 100%).

1 ÷ 1 = 1 (100%)

Visual Representation

The diagram below illustrates 1/3 plus 2/3 visually:

Summary & Alternative Representations

Property / Format	Value
Lowest Terms Fraction	`1`
Mixed Number Form	`1`
Decimal Form	`1`
Percentage	`100%`

Was this solution helpful?

Help us improve our free step-by-step tools

Frequently Asked Questions

What is 1/3 plus 2/3 as a fraction?

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

What is 1/3 plus 2/3 as a decimal?

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

What is 1/3 plus 2/3 as a percentage?

1/3 + 2/3 expressed as a percentage is 100%.

Is the answer to 1/3 plus 2/3 a whole number?

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