Fraction worksheets for Grades 3–6: printable PDFs with answer keys

Fractions are the concept that trips up more students — and more teachers' prep time — than almost anything else in elementary and middle school math. Finding the right practice sheet for the right sub-skill at the right difficulty takes longer than it should. Here's a practical guide to what fraction worksheets look like across Grades 3–6, and how to generate them instantly.

What fraction skills to practise at each grade

• Grade 3 (ป.3): Recognising fractions as parts of a whole or a set. Equivalent fractions with visual fraction bars. Comparing fractions with the same denominator.
• Grade 4 (ป.4): Equivalent fractions without pictures. Adding and subtracting fractions with like denominators. Improper fractions and mixed numbers.
• Grade 5 (ป.5): Adding and subtracting fractions with unlike denominators. Multiplying a fraction by a whole number.
• Grade 6 (ป.6): Multiplying fractions by fractions. Dividing fractions. Complex mixed-number operations.

Three difficulty levels — one topic

Not every Grade 5 student is at the same point. MathPrepAI generates the same fraction sub-skill at Easy, Medium, and Hard levels so you can hand the right version to the right group without making three separate worksheets. Easy problems use small friendly numbers; Hard problems introduce larger denominators and multi-step operations.

Why algorithmic fraction worksheets beat static PDFs

A static fraction worksheet downloaded from the internet can be shared, copied, or memorised. An algorithmic generator creates a completely new set of fractions every time you click — same skill, different numbers. Every answer is verified symbolically before the worksheet is created, so the answer key is correct 100% of the time. No more cross-checking the teacher's edition.

Fraction worksheets in English and Thai

If you teach in a bilingual setting or your students are more comfortable reading instructions in Thai, switch languages with one click. The same fraction problems appear in Thai — instructions, labels, and word problems all adapted — or flip back to English for the next group. Both versions share the same generated numbers, so the difficulty and the answer key are identical.

How to generate a fraction worksheet

• Open the builder and select Fractions & Decimals.
• Choose the variant: Equivalent Fractions, Add/Subtract, Multiply, Divide, or Mixed Numbers.
• Set the grade level and difficulty (Easy / Medium / Hard).
• Pick your language: English or Thai.
• Download the print-ready PDF with an answer key on the last page.

Start free — no credit card required

The free plan gives you 30 worksheet downloads per month. Every new account starts with a 14-day Founder Pass — full access, no watermark — so you can try every fraction variant and every difficulty level before you decide on a plan. Paid plans start at $6 per month for unlimited downloads.