In this Grade 4 Eureka Math lesson from Chapter 26, students learn to add a mixed number and a fraction by applying unit form thinking and number line models. The lesson covers two key strategies: adding like units when the fractional parts sum to less than or equal to 1, and decomposing a fraction to complete a unit of 1 when the fractional parts sum to more than 1. Students build on their understanding of mixed numbers and equivalent fractions to solve problems involving unlike whole and fractional units.
Section 1
Add Like Units and Regroup an Improper Fraction
When adding a mixed number and a fraction with like denominators, add the fractional parts first. If the resulting fraction is improper, regroup it into a whole number and a fraction, then add it to the original whole number.
Section 2
Making the Next Whole Number
When adding a mixed number and a fraction with like denominators, if the sum of the fractional parts equals one whole, the result is the next whole number. If , then
Section 3
Add by Making a Whole Using Arrow Way
To add a mixed number and a fraction, decompose the fractional addend to make the next whole number, then add the remaining part. The 'arrow way' notation visually represents this process of adding in parts.
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Section 1
Add Like Units and Regroup an Improper Fraction
When adding a mixed number and a fraction with like denominators, add the fractional parts first. If the resulting fraction is improper, regroup it into a whole number and a fraction, then add it to the original whole number.
Section 2
Making the Next Whole Number
When adding a mixed number and a fraction with like denominators, if the sum of the fractional parts equals one whole, the result is the next whole number. If , then
Section 3
Add by Making a Whole Using Arrow Way
To add a mixed number and a fraction, decompose the fractional addend to make the next whole number, then add the remaining part. The 'arrow way' notation visually represents this process of adding in parts.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter