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.

Is 2/4 allowed as a benchmark instead of 1/2?

2/4 is the same amount as 1/2, and it is a fair comparison. This section writes the benchmark as 1/2 so the first step is to make a fraction equal to one half.

What if my child gets a common denominator that is larger than it needs to be?

A larger common denominator still works. 2/3 = 16/24 and 3/4 = 18/24 gives the same order as 8/12 and 9/12. Smaller denominators are less arithmetic, not a different answer.

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.

4th Grade Compare Fractions with Different Numerators and Denominators Worksheets

Fresh practice, ready to print. Answer key included.

Comparing fractions such as 5/8 and 1/2, or 2/3 and 3/4, when the numerators and the denominators are both different. Students use 1/2 as a benchmark and find a common denominator. A few pairs are equal, including hundredths.

Sections

Compare to 1/2Common denominatorMixed practice

Problems per section

Or start with a ready-made version.

Open worksheet (PDF)Open answer key (PDF)

4th Grade Compare Fractions with Different Numerators and Denominators Worksheets: page 1 of a free printable 4th grade math worksheet — Page 1 of a sample worksheet

What's on the worksheet

Compare to 1/2
One fraction is 1/2. Decide whether the other is less, equal, or greater, such as 5/8 and 1/2.
Common denominator
Different numerators and denominators, such as 2/3 and 3/4, compared with a common denominator.
Mixed practice
Benchmarks of 1/2 and common denominators together.

How it works: a quick refresher

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

Strategy	How it works
Benchmark of 1/2	A fraction equal to 1/2 has a numerator that is half the denominator. 3/8 is less than 1/2 because 3 is less than 4.
Common denominator	Rewrite both fractions with the same denominator, then compare the numerators. 2/3 = 8/12 and 3/4 = 9/12, so 2/3 < 3/4.
One denominator may already work	If one denominator is a multiple of the other, only one fraction has to change. 1/2 = 4/8, so compare 4/8 and 5/8.
Equal fractions	Different writing can be the same amount. 2/3 = 8/12, so the sign is =.
Hundredths	Compare 3/4 and 70/100 by writing 3/4 as 75/100. 75 hundredths is more than 70.

Worked example

Compare 5/8 and 1/2.

1Write 1/2 with denominator 8. Half of 8 is 4, so 1/2 = 4/8.
25/8 and 4/8 have the same denominator.
35 is more than 4, so 5/8 is greater than 4/8.
45/8 > 1/2.

Ready-made versions

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

4th Grade Compare Fractions with Different Numerators and Denominators Worksheets, version 1Worksheet PDF Answer key PDF
4th Grade Compare Fractions with Different Numerators and Denominators Worksheets, version 2Worksheet PDF Answer key PDF
4th Grade Compare Fractions with Different Numerators and Denominators Worksheets, version 3Worksheet PDF Answer key PDF

Grade level and standard

Written for 4th grade math (fractions) and aligned to CCSS 4.NF.A.2. 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.
Is 2/4 allowed as a benchmark instead of 1/2?: 2/4 is the same amount as 1/2, and it is a fair comparison. This section writes the benchmark as 1/2 so the first step is to make a fraction equal to one half.
What if my child gets a common denominator that is larger than it needs to be?: A larger common denominator still works. 2/3 = 16/24 and 3/4 = 18/24 gives the same order as 8/12 and 9/12. Smaller denominators are less arithmetic, not a different answer.
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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