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Adding or subtracting mixed numbers
There are two methods of adding or subtracting mixed numbers. Either
add the whole numbers and then add the fraction parts, or convert each
mixed number to an improper fraction before calculating. remind your
child to reduce any answers to their lowest term and to change any
improper fractions to mixed numbers.
Tips and Reminders
When adding/ subtracting mixed numbers:
- Add the whole number parts.
- Change the fractions as required to their equivalent values so
all fractions have the same denominator.
- Add/ subtract the numerators. Leave the denominator as is.
The example below shows the adding of two mixed numbers.

Note: An alternative to the above method involves changing the mixed
numbers to improper fractions (7/3 and 15/4), converting these to equivalent
values (28/12 and 45/12), adding these, and finally changing the improper
fraction to a mixed number.
Worksheets – adding, subtracting fractions
Use the worksheets below to practice adding and subtracting fractions
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