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4th Grade Math · Add and Subtract Fractions with Like Denominators

Subtracting mixed numbers Worksheets

Fresh practice, ready to print. Answer key included.

Regrouping, such as 3 1/4 − 1 3/4 = 1 1/2.

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Subtracting mixed numbers Worksheets: page 1 of a free printable 4th grade math worksheet
Page 1 of a sample worksheet

How it works: a quick refresher

The rules this worksheet practices, then one problem worked from start to finish.

StrategyHow it works
Add the numeratorsThe denominator stays the same. 2/8 + 3/8 = 5/8.
Subtract the numerators5/6 − 1/6 = 4/6, which simplifies to 2/3.
Simplify at the endDivide the numerator and the denominator by a common factor. 2/8 + 2/8 = 4/8 = 1/2.
Greater than 13/4 + 3/4 = 6/4. That is 1 whole and 1/2 left over, written 1 1/2.
Regroup a mixed number3 1/4 − 1 3/4 needs a whole. 3 1/4 = 2 5/4, and 2 5/4 − 1 3/4 = 1 1/2.

Worked example

Find 3 1/4 − 1 3/4.

  1. 11/4 is smaller than 3/4, so regroup 3 1/4 as 2 5/4.
  2. 2Subtract the fractions: 5/4 − 3/4 = 2/4.
  3. 3Subtract the whole numbers: 2 − 1 = 1, so the difference is 1 2/4.
  4. 42/4 simplifies to 1/2. 3 1/4 − 1 3/4 = 1 1/2.

Ready-made versions

Three fixed versions you can link to or share. Each is a PDF with its own answer key.

Grade level and standard

Written for 4th grade math (fractions) and aligned to CCSS 4.NF.B.3. It also works as review in later grades.

Common questions

Is there an answer key?
Yes. Every worksheet has a matching answer key with each answer worked on the same grid or layout as the question. The worksheet code printed at the bottom of each page pairs a sheet with its key.
My child wrote 6/4 instead of 1 1/2. Is that wrong?
6/4 and 1 1/2 are the same amount. These problems ask for a mixed number when the answer is greater than 1, and for simplest form, so 1 1/2 is the form to practise.
Why regroup 3 1/4 before subtracting 3/4?
You cannot take 3 fourths from 1 fourth. Breaking a whole into 4 fourths makes 5 fourths, and 5 is enough to subtract 3. One whole is left from the 3, along with 2 fourths.
How many different versions are there?
About a million per skill. Each time you press the button the problems are generated fresh, so you can print a different version for every student, a retake, or another night of practice.
Are the worksheets free?
Yes. They are free to print and copy for your home or classroom, with no sign-up.

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