*Contributor: Erika Wargo. Lesson ID: 12535*

You have two hours before bed. You have to practice piano for a quarter of the time, then do homework for two quarters of the time. How much time do you have left for TV? Take time to learn fractions!

categories

subject

Math

learning style

Visual

personality style

Otter

Grade Level

Intermediate (3-5)

Lesson Type

Skill Sharpener

The pizza you are eating for dinner has 8 slices. You ate ^{2}⁄_{8} of the pizza. Your brother ate ^{5}⁄_{8} of the pizza. How much of the pizza did you and your brother eat? How much more pizza did your brother eat than you?

*Fractions* are numbers less than 1 that show part of a whole.

The top number of a fraction is the *numerator*. The bottom number of a fraction is the *denominator*. Fractions with the same denominator have *common* denominators.

Watch a short video to review adding and subtracting fractions with the same denominator and write down the answers to these questions:

- When adding or subtracting fractions with the same denominator, which numbers do we add?
- When adding or subtracting fractions with the same denominator, which numbers stay the same?
- Does subtracting fractions work the same way as adding fractions?

Discuss the questions above after you have watched *Math Antics - Adding and Subtracting Fractions*:

**Example 1**

5 | + | 3 | = | |

19 | 19 |

When fractions have a common denominator, add the numerators and keep the denominator the same:

5 | + | 3 | = | 8 |

19 | 19 | 19 |

**Example 2**

15 | + | 12 | = | |

20 | 20 |

When fractions have a common denominator, subtract the numerators and keep the denominator the same. Be sure to subtract the smaller number from the larger number:

15 | + | 12 | = | 3 |

20 | 20 | 20 |

Now, you will move on to the *Got It?* section to complete interactive practice with adding and subtracting fractions.

We help prepare learners for a future that cannot yet be defined. They must be ready for change, willing to learn and able to think critically. Elephango is designed to create lifelong learners who are ready for that rapidly changing future.

Copyright© 2019 Elephango | Contact Us
| Terms & Conditions