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Simplifying Fractions Worksheet

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Tip: download the PDF for Letter or A4 paper, print it at 100% and use a pencil or crayon. Tap "Show solution" to check your answer, or print it as an answer key.

Up nextMixed Numbers and Improper Fractions →

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Sixteen fractions to write in their simplest form, with denominators up to 24, such as 12/18 or 10/14. Divide the top and the bottom by a number that goes into both, and keep going until only 1 goes into both: 12/18 is 6/9, which is 2/3. Children who know their times tables find the biggest common factor in one step. The answer key gives the simplest form only.

Also try: Mixed Numbers and Improper Fractions · Fraction Wall (Fraction Bars) · Fraction Number Lines 0 to 1

Tips for this fraction worksheet

  • Find a number that goes into both the top and the bottom.
  • Divide both by it, then look again: can you go on?
  • Check by multiplying back up to the fraction you started with.

Page 2 of the PDF is the answer key. The fraction number lines show the same fractions as distances from 0 to 1. When this sheet feels easy, move on to the times tables worksheets, which make simplifying quicker. See all fraction worksheets.

For teachers and parents

What it practises
Equal parts, halves, thirds and quarters, equivalent and comparing fractions, adding, simplifying and mixed numbers
How to use it
Say each fraction in words (“three quarters”). Use folded paper strips or the fraction wall for the first sheets. Answers on page 2.
Time
About 10–20 minutes

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Paste this into your school, class or library web page. It shows the picture and a link back here, so families can print it themselves. You can change the wording.

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Printing tips

  • Fold paper strips into halves, quarters and eighths before the first sheet.
  • Say fractions in words: “three quarters”, “two fifths”.
  • Mark with page 2 and redo the wrong ones the next day.

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