This grade 4 adding fractions test checks adding and subtracting fractions and mixed numbers in 45 minutes, with 9 questions for a total of 20 points.
This test has 9 questions worth 20 points in total. It covers decomposing fractions, adding and subtracting fractions with like denominators, and working with mixed numbers. Show your steps and write mixed-number answers in a clear form.
- Grade: Grade 4
- Chapter: Adding and Subtracting Fractions and Mixed Numbers
- Common Core: 4.NF.B.3
- Time: 45 minutes
- Total: 20 points (Question 1: 2 pts; Question 2: 2 pts; Question 3: 2 pts; Question 4: 2 pts; Question 5: 3 pts; Question 6: 3 pts; Question 7: 2 pts; Question 8: 2 pts; Question 9: 2 pts)
Grade 4 Adding Fractions Test: questions 1–5
Question 1: Decompose a fraction (2 points)
- Write \(\frac{5}{8}\) as a sum of unit fractions. (1 point)
- Write \(\frac{5}{8}\) as the sum of two different fractions with denominator 8. (1 point)
Question 2: Same denominator (2 points)
- Find \(\frac{5}{12}+\frac{4}{12}\). (1 point)
- Find \(\frac{9}{10}-\frac{6}{10}\). (1 point)
Question 3: Missing numbers (2 points)
- \(\frac{3}{8}+ ? = 1\) (1 point)
- \(? -\frac{4}{12}=\frac{5}{12}\) (1 point)
Question 4: Mixed numbers and fractions (2 points)
- Write \(2\frac{3}{5}\) as a fraction. (1 point)
- Write \(\frac{19}{8}\) as a mixed number. (1 point)
Question 5: Add mixed numbers (3 points)
- Find \(2\frac{4}{10}+3\frac{3}{10}\). (1 point)
- Find \(1\frac{7}{8}+2\frac{5}{8}\). (2 points)
Grade 4 Adding Fractions Test: questions 6–9
Question 6: Subtract mixed numbers (3 points)
- Find \(7\frac{5}{6}-2\frac{1}{6}\). (1 point)
- Find \(5\frac{1}{4}-2\frac{3}{4}\). (2 points)
Question 7: Number line addition (2 points)
- Write an addition equation for the jumps. (1 point)
- Write the total as a mixed number. (1 point)
Question 8: Recipe ingredients (2 points)
Aisha uses \(1\frac{5}{8}\) cups of sugar and \(2\frac{4}{8}\) cups of flour. How many cups of these two ingredients does she use in all?
Question 9: Rope length (2 points)
A rope is 6 yards long. Noah cuts off \(2\frac{3}{4}\) yards.
How long is the piece that is left?
How to use this grade 4 adding fractions test
Take this grade 4 adding fractions test without notes, then grade it with the test answer key out of 20 points.
See every chapter on the Grade 4 math page.




















