Adding Fractions (Like Denominators)

Inside the case file

Adding fractions with like denominators worksheets for 4th grade, 5th grade and 6th grade. There are five CSI Mini Mystery Detective math cases, and the answers don't need simplifying. They work as a math center or early finisher activity. Color and black and white copies are both included, with answer keys and no prep.

Every problem adds two fractions with the same denominator, so students can focus on the addition itself. They find their answer in the clue lists and cross it off. A teacher's new car, a missing principal and a classmate who's gone missing are among the cases.

The Cases

1. Missing Principal - where the principal was taken
2. Good Deeds - a student doing good deeds
3. Classmate Caper - a missing classmate
4. Teachers Lunch - the teacher's lunch is gone
5. New Car - which teacher bought a new car

What's Inside

• Five case pages in color
• Black and white copies
• Answer keys for all five
• A coloring page for early finishers
• A teacher instruction page

What Is a CSI Mini Mystery Detective?

Each case is a page with the problems on the left and clue lists on the right. The clues have fraction values next to them. Students cross off clues that match their answers, and the clues left at the end solve the case.

When to Use This Resource

Use these when you introduce adding fractions, before unlike denominators come in. They're also useful as review for 6th graders. Hand them out as homework, use them in small groups, or keep them for a sub day.

Grade Levels

Written for 4th grade, 5th grade and 6th grade.

Why Teachers Love These Cases

• Like denominators only, with no simplifying
• Color or black and white
• A coloring page included
• No prep

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