This power point explores the concept of how we add fractions with unlike denominators. The power point asks students to compare blood types with different denominators. Students love talking about the different blood types-nice connection to science class. When asked how we can compare these results accurately students should come up with finding a common denominator. Then with the class you can change each fraction to an equivalent reviewing the process. Word problems, a section of practice, and a sum it up question are included. All of my power points I use with my class. They are created so that you can write on each slide as you solve problems or write notes with your class.
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