Doughnuts and Adding Fractions

Introducing Fish Lake and it’s PowerPoint and PDF titled, “Doughnuts and Adding Fractions.” This lesson uses doughnuts to illustrate adding fractions with like denominators and takes students through the steps of adding mixed number fractions that also have like denominators. You can view and download the “Doughnuts and Adding Fractions” PowerPoint presentation and PDF below:

Adding fractions with a common denominator - 3/6 = 3 out of 6 baskets

Adding and Subtracting fractions with a Common Denominator: Multi-step problems

 Students often struggle with multi-step problems for a lot of reasons. In my experience, the most common one is they stop too soon. For example, in the first lesson below, the student may add up the fractions of the rice gathered by each of the two sisters and stop there. However, the question asks, “How

A denominator is the number of parts a whole is divided into

Video: Adding Fractions with Like Denominators

Standards CCSS.MATH.CONTENT.4.NF.B.3.CAdd and subtract mixed numbers with like denominators, e.g., by replacing each mixed number with an equivalent fraction, and/or by using properties of operations and the relationship between addition and subtraction. Summary Now that you understand what a fraction is, what’s a numerator and what’s a denominator, you can start doing operations with fractions.