Adding and Subtracting Fractions and Mixed Numbers: Grade 4 Math Worksheet – PDF Download

Grade 4 Adding Fractions Worksheet: problems 1–5

Problem 1: Unit fractions in a bar

The bar shows \(\frac{4}{6}\) shaded. Write \(\frac{4}{6}\) as a sum of unit fractions.

Problem 2: Three ways to split seven eighths

Write \(\frac{7}{8}\) as the sum of two fractions with denominator 8 in three different ways.

Problem 3: Missing part

Find the missing fraction.

1. \(\frac{5}{10}=\frac{2}{10}+ ?\)
2. \(\frac{9}{12}= ? +\frac{4}{12}\)

Problem 4: Add like fractions

1. Add: \(\frac{1}{5}+\frac{2}{5}\)
2. Add: \(\frac{3}{8}+\frac{4}{8}\)
3. Add: \(\frac{5}{12}+\frac{4}{12}\)
4. Add: \(\frac{20}{100}+\frac{35}{100}\)

Problem 5: Add with a model

Use the bar to add \(\frac{3}{10}\) and \(\frac{4}{10}\).

Grade 4 Adding Fractions Worksheet: problems 6–10

Problem 6: Subtract like fractions

1. Subtract: \(\frac{5}{6}-\frac{2}{6}\)
2. Subtract: \(\frac{9}{10}-\frac{4}{10}\)
3. Subtract: \(\frac{11}{12}-\frac{5}{12}\)
4. Subtract: \(\frac{8}{8}-\frac{3}{8}\)

Problem 7: Subtract with a model

The bar shows \(\frac{5}{8}\) with 2 parts crossed out. Find \(\frac{5}{8}\) – \(\frac{2}{8}\).

Problem 8: Find the unknown

1. \(? +\frac{2}{7}=\frac{6}{7}\)
2. \(\frac{3}{10}+ ? =\frac{8}{10}\)
3. \(\frac{9}{12}- ? =\frac{4}{12}\)
4. \(? -\frac{3}{8}=\frac{2}{8}\)

Problem 9: Make one whole

Write a fraction for the missing part so that the sum is 1.

1. \(\frac{3}{5}+ ? = 1\)
2. \(1 -\frac{3}{8}= ?\)
3. \(1 -\frac{7}{12}= ?\)

Problem 10: Whole numbers as fractions

Write each whole number as a fraction with the given denominator.

1. \(1 =\frac{?}{6}\)
2. \(2 =\frac{?}{3}\)
3. \(3 =\frac{?}{4}\)

Grade 4 Adding Fractions Worksheet: problems 11–15

Problem 11: Mixed number as a fraction

The model shows \(2\frac{1}{4}\). Write it as a fraction greater than 1.

Problem 12: Rename mixed numbers

1. Rename \(3\frac{3}{5}\) as a fraction.
2. Rename \(2\frac{5}{6}\) as a fraction.
3. Rename \(4\frac{7}{8}\) as a fraction.
4. Rename \(1\frac{9}{12}\) as a fraction.

Problem 13: Rename fractions as mixed numbers

1. Rename \(\frac{7}{4}\) as a mixed number.
2. Rename \(\frac{11}{5}\) as a mixed number.
3. Rename \(\frac{17}{6}\) as a mixed number.
4. Rename \(\frac{25}{8}\) as a mixed number.

Problem 14: Add mixed numbers

1. Add: \(1\frac{2}{5}+2\frac{1}{5}\)
2. Add: \(3\frac{1}{8}+2\frac{4}{8}\)
3. Add: \(4\frac{3}{10}+1\frac{5}{10}\)

Problem 15: Add mixed numbers and rename

1. Add: \(2\frac{3}{4}+1\frac{3}{4}\)
2. Add: \(1\frac{5}{6}+2\frac{4}{6}\)
3. Add: \(3\frac{7}{8}+2\frac{5}{8}\)

Grade 4 Adding Fractions Worksheet: problems 16–20

Problem 16: Subtract mixed numbers

1. Subtract: \(4\frac{5}{6}-1\frac{2}{6}\)
2. Subtract: \(6\frac{7}{8}-2\frac{3}{8}\)
3. Subtract: \(5\frac{9}{10}-3\frac{4}{10}\)

Problem 17: Subtract with renaming

1. Subtract: \(3\frac{1}{4}-1\frac{3}{4}\)
2. Subtract: \(5\frac{2}{6}-2\frac{5}{6}\)
3. Subtract: \(4\frac{1}{5}-1\frac{3}{5}\)
4. Subtract: \(6 -2\frac{3}{8}\)

Problem 18: Jumps on a number line

A number line shows a jump of \(\frac{2}{6}\) followed by a jump of \(\frac{3}{6}\), starting at 0. Write an equation and tell where the jumps end.

Problem 19: Find the mistake

Ethan wrote \(\frac{2}{5}+\frac{1}{5}=\frac{3}{10}\). Explain his mistake and give the correct sum.

Problem 20: Peach crate

At the farmers market, Jamal sold \(\frac{4}{12}\) of a crate of peaches before noon and \(\frac{5}{12}\) of the crate after noon. What fraction of the crate did he sell? What fraction is left?

Grade 4 Adding Fractions Worksheet: problems 21–25

Problem 21: Hiking trail

On a road trip, Jamal hiked \(2\frac{5}{6}\) miles on Saturday and \(1\frac{4}{6}\) miles on Sunday. How many miles did he hike in all?

Problem 22: Ribbon left over

Sofia has \(5\frac{1}{8}\) yards of ribbon. She cuts off \(2\frac{6}{8}\) yards for a gift. How much ribbon is left?

Problem 23: Pizza party

A pizza is cut into 12 equal slices. Diego ate \(\frac{2}{12}\) of the pizza, Aisha ate \(\frac{5}{12}\), and Noah ate \(\frac{3}{12}\). How much of the pizza did they eat altogether? How much is left?

Problem 24: Farmers market fruit

At the farmers market, Priya bought \(3\frac{3}{5}\) pounds of apples and \(2\frac{4}{5}\) pounds of pears. She used \(1\frac{1}{5}\) pounds of the fruit in a pie. How many pounds of fruit does she have left?

Problem 25: Filling the water jug

Liam pours \(3\frac{1}{4}\) cups of water into a jug, then adds \(2\frac{3}{4}\) more cups. Later he pours out \(4\frac{2}{4}\) cups. How much water is in the jug now?

How to use this grade 4 adding fractions worksheet

Print this grade 4 adding fractions worksheet as a PDF, solve every problem on paper, then compare with the answer key.

See every chapter on the Grade 4 math page.