Grade 4 students learn how to subtract mixed numbers with like denominators using two strategies: renaming the minuend by borrowing a whole (converting it to an equivalent mixed number) and converting mixed numbers to improper fractions before subtracting. This lesson is part of Chapter 9 in enVision Mathematics Grade 4 and builds on students' understanding of equivalent fractions and the relationship between addition and subtraction.
Section 1
Procedure: Subtracting Mixed Numbers with Regrouping
To subtract mixed numbers when the top fraction is smaller than the bottom fraction:
Section 2
Subtract by converting to improper fractions
Subtract mixed numbers with common denominators as improper fractions.
Step 1. Rewrite the mixed numbers as improper fractions.
Step 2. Subtract the numerators.
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Section 1
Procedure: Subtracting Mixed Numbers with Regrouping
To subtract mixed numbers when the top fraction is smaller than the bottom fraction:
Section 2
Subtract by converting to improper fractions
Subtract mixed numbers with common denominators as improper fractions.
Step 1. Rewrite the mixed numbers as improper fractions.
Step 2. Subtract the numerators.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter