## Fraction Addition (Like Denominators)

#### Aligned To Common Core Standard:

**Grade 4 Fractions** - 4.NF.B.3a

How to Add Fractions with Like Denominators - Adding fractions with the same denominators is a very straightforward process given if the rules are followed the right way. This lesson will be addressing the fractions that have the same denominators. We will be including all the necessary information you will need to work with common denominators. The equation shows the rule of addition applied. For instance, if you are dealing with same denominators, the answer to the sum of the numerator (a and c) over the common denominator. Remember that a fraction usually refers to the number of parts in the whole. The WHOLE here refers to the number that lies in the denominator. So, all you need to do is add everything and keep everything on the same point of reference. Here are some of the instructions. For add fractions, denominators need to be equal and complete the steps to add the two fractions. 1. Build every fraction so that the two denominators become equal. 2. Add the numerators of the fraction. 3. The new denominator will be denominator of the build-up fractions. 4. Reducing or simplifying the answer, if needed. a. Factor numerator. b. Factor denominator. c. Cancel-out fraction mixes that have value of 1. d. Re-writing the answer as reduced or a simplified fraction. e. Remember, DON'T ADD THE DENOMINATOR. These worksheets and lessons show students how to add fractions that have like denominators.

### Printable Worksheets And Lessons

- Creating Improper Fractions Step-by-Step Lesson- This is very basic. We do not ask them to create mixed numbers, just top-heavy fractions.
- Guided Lesson - We go both vertical and horizontal with these.
- Guided Lesson Explanation - I show you a nice way to set up these types of problems. It makes them very easy to solve.
- Horizontal Worksheet 5-Pack -All the problems are set up in a horizontal orientation. You will see this often on Regional exams.
- Practice Worksheet -I provided a line below each problem for students to write their final answers.
- Matching Worksheet - Match the fraction operations and their sum.
- Adding Unlike Fractions Lesson and Practice - This is a set right into the next skill set that you see at 5th grade. This is for advanced students.
- Add and Reduce Unlike Fractions Practice - Again, I want to stress that this is for advanced students and is above this standard.

#### Homework Sheets

I went through the reduced fractions in here. I added all the steps, so if you are not to reduction yet, the answer is there for you, too.

- Homework 1 - Add the fractions and simplify to the lowest terms.
- Homework 2 - In this fraction, the denominators (bottom numbers) are same.
- Homework 3 - So add the numerators (top numbers).

#### Practice Worksheets

Lots of white space in here and some top-heavy and real small (big denominators) are mixed in there, too.

- Practice 1 - Make sure to write the addition value with the denominator which was same.
- Practice 2 - Just add across the top and you are good to go.
- Practice 3 - Yeah, some of these are crazy top heavy.