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Adding fractions with related denominators worksheets Grade 5

Add fractions where one denominator divides the other: rewrite, add, simplify.

The front of the free adding fractions with related denominators worksheet

Free · Worked example · 48 problems · Answer key · US Letter

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How to do it

1/3 + 1/6: rewrite 1/3 as the equivalent fraction 2/6, then add. Simplify the answer.

112+14=112+312=412\dfrac{1}{12} + \dfrac{1}{4} = \dfrac{1}{12} + \dfrac{3}{12} = \dfrac{4}{12}rewrite with denominator 12
412=13\dfrac{4}{12} = \dfrac{1}{3}simplify (÷ 4)

Example problems

  1. 421+67=\dfrac{4}{21} + \dfrac{6}{7} =
  2. 127+89=\dfrac{1}{27} + \dfrac{8}{9} =
  3. 58+12=\dfrac{5}{8} + \dfrac{1}{2} =
  4. 16+524=\dfrac{1}{6} + \dfrac{5}{24} =

Adding and subtracting fractions

  1. Adding fractions with related denominators
  2. Subtracting fractions with related denominators
  3. Adding fractions with unlike denominators
  4. Subtracting fractions with unlike denominators
  5. Adding mixed numbers
  6. Subtracting mixed numbers
  7. Subtracting mixed numbers with borrowing
  8. Adding and subtracting three fractions