To add fractions with the same denominators, add their numerators and leave the denominator unchanged.
For example, let's add fractions and
. Add up the numerators and leave the denominator unchanged:
This example can be easily understood if you think of a pizza that is divided into four parts. If you add pizzas to
pizza, you get
pizza:
Example 2. Add fractions and
.
Again we add the numerators and leave the denominator unchanged:
The answer is an incorrect fraction.. If the end of the problem comes, it is customary to get rid of incorrect fractions. To get rid of an irregular fraction, you need to select the integer part of it. In our case, the integer part is easy - two divided by two is one:
This example can be easily understood if you think of a pizza that is divided into two parts. If you add another pizza to the
pizza, you get one whole pizza:
Example 3. Add fractions and
.
Again we add the numerators and leave the denominator unchanged:
This example can be easily understood if you think of a pizza that is divided into three parts. If you add another pizza to
pizza, you get
pizza:
Example 4. Find the value of the expression
This example is solved in the same way as the previous ones. The numerators must be added and the denominator left unchanged:
Let's try to represent our solution with a picture. If you add pizza to
pizza and add another
pizza, you get 1 whole pizza and another
pizza.
As you can see, there is nothing complicated about adding fractions with equal denominators. It is enough to understand the following rules:
- To add fractions with the same denominators, add their numerators and leave the denominator unchanged;
- If the answer is an improper fraction, you need to select the integer part of it.
2. If you find an error or inaccuracy, please describe it.
3. Positive feedback is welcome.