When you add two thirds (2/3) to another two thirds (2/3), you are essentially combining two equal parts of a whole that is divided into three equal parts.
To add these fractions, you simply add the numerators (the top numbers) while keeping the denominator (the bottom number) the same. So, 2/3 + 2/3 = (2 + 2)/3 = 4/3.
This result, 4/3, is an improper fraction because the numerator is larger than the denominator. It can also be expressed as a mixed number, which is 1 1/3. This means you have one whole and one third of another whole.
In summary, two thirds plus two thirds equals four thirds, or one and one third.