Lesson: Subtracting Mixed Numbers with Like Denominators Mathematics • 4th Grade

In this lesson, we will learn how to subtract two mixed numbers with the same denominator by regrouping if needed using models, including tape diagrams and number lines.

Lesson Plan

Students will be able to

model subtraction of mixed numbers with bar models and number lines,
break apart mixed numbers and subtract the whole number parts and fraction parts separately,
rename a mixed number to subtract when necessary,
subtract mixed numbers by writing them as improper fractions,
choose strategies to subtract mixed numbers.

Lesson Worksheet

Q1:

Jacob walked km, whereas James walked km. How many more kilometers did Jacob walk than James?

Q2:

Which of the following is the model of the result of the difference between and ?

Q3:

Find .