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Add/Subtract Mixed Numbers

Grade 4 · Mathematics · Worksheet 2

  1. 4 3/8 + 2 5/8 = ? Answer: ______________
  2. At the park, Charlotte sees 2 birds sitting on a fence. Then 1 more birds fly over and join them. How many birds are on the fence now? Answer: ______________
  3. Maria is making trail mix for her hiking trip. She measures 2 3/4 cups of peanuts and 1 2/3 cups of raisins. How many total cups of trail mix ingredients did Maria measure? Answer: ______________
  4. Maya is reading a book that has 14 pages. Maya has already read 3 pages. How many pages does Maya have left to read? Answer: ______________
  5. Moana has 8 stickers in a collection. Moana's friend gives them 13 more stickers. How many stickers does Moana have now? Answer: ______________
  6. At the park, Aroha sees 3 birds sitting on a fence. Then 2 more birds fly over and join them. How many birds are on the fence now? Answer: ______________
  7. 5 2/7 + 3 4/7 = ? Answer: ______________
  8. 3 2/6 + 2 3/6 = ? Answer: ______________
  9. 4 3/4 + 2 1/2 = ? Answer: ______________
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Answer Key & Explanations

Add/Subtract Mixed Numbers · Grade 4 · Worksheet 2

  1. 4 3/8 + 2 5/8 = ? Answer: 7 Solution: Add the whole numbers: 4 + 2 = 6 Add the fractions: 3/8 + 5/8 = 8/8 Simplify 8/8 = 1 Add the results: 6 + 1 = 7 The answer is 7.
    Full step-by-step solution

    Step 1: Add the whole numbers: 4 + 2 = 6 Step 2: Add the fractions: 3/8 + 5/8 = 8/8 Step 3: Simplify 8/8 = 1 Step 4: Add the results: 6 + 1 = 7 The answer is 7.

  2. At the park, Charlotte sees 2 birds sitting on a fence. Then 1 more birds fly over and join them. How many birds are on the fence now? Answer: 3 Solution: Start with 2 birds on the fence. 1 more birds join them. Add to find the total: 2 + 1 = 3 birds.
    Full step-by-step solution

    Step 1: Start with 2 birds on the fence. Step 2: 1 more birds join them. Step 3: Add to find the total: 2 + 1 = 3 birds. The answer is 3.

  3. Maria is making trail mix for her hiking trip. She measures 2 3/4 cups of peanuts and 1 2/3 cups of raisins. How many total cups of trail mix ingredients did Maria measure? Answer: 4 5/12 Solution: Add the whole numbers: 2 + 1 = 3 Find a common denominator for the fractions 3/4 and 2/3. The least common denominator is 12.
    Full step-by-step solution

    Step 1: Add the whole numbers: 2 + 1 = 3 Step 2: Find a common denominator for the fractions 3/4 and 2/3. The least common denominator is 12. Step 3: Convert 3/4 to twelfths: 3/4 = 9/12 Step 4: Convert 2/3 to twelfths: 2/3 = 8/12 Step 5: Add the fractions: 9/12 + 8/12 = 17/12 Step 6: Convert 17/12 to a mixed number: 17/12 = 1 5/12 Step 7: Add this to the whole number sum: 3 + 1 5/12 = 4 5/12 Maria measured 4 5/12 cups of trail mix ingredients.

  4. Maya is reading a book that has 14 pages. Maya has already read 3 pages. How many pages does Maya have left to read? Answer: 11 Solution: The book has 14 pages in total. Maya has read 3 pages so far. Subtract to find how many are left: 14 - 3 = 11 pages.
    Full step-by-step solution

    Step 1: The book has 14 pages in total. Step 2: Maya has read 3 pages so far. Step 3: Subtract to find how many are left: 14 - 3 = 11 pages. The answer is 11.

  5. Moana has 8 stickers in a collection. Moana's friend gives them 13 more stickers. How many stickers does Moana have now? Answer: 21 Solution: Moana starts with 8 stickers. The friend gives 13 more stickers. Add to find the new total: 8 + 13 = 21 stickers.
    Full step-by-step solution

    Step 1: Moana starts with 8 stickers. Step 2: The friend gives 13 more stickers. Step 3: Add to find the new total: 8 + 13 = 21 stickers. The answer is 21.

  6. At the park, Aroha sees 3 birds sitting on a fence. Then 2 more birds fly over and join them. How many birds are on the fence now? Answer: 5 Solution: Start with 3 birds on the fence. 2 more birds join them. Add to find the total: 3 + 2 = 5 birds.
    Full step-by-step solution

    Step 1: Start with 3 birds on the fence. Step 2: 2 more birds join them. Step 3: Add to find the total: 3 + 2 = 5 birds. The answer is 5.

  7. 5 2/7 + 3 4/7 = ? Answer: 8 6/7 Solution: Add the whole numbers: 5 + 3 = 8 Add the fractions: 2/7 + 4/7 = 6/7 Combine the results: 8 + 6/7 = 8 6/7 The answer is 8 6/7.
    Full step-by-step solution

    Step 1: Add the whole numbers: 5 + 3 = 8 Step 2: Add the fractions: 2/7 + 4/7 = 6/7 Step 3: Combine the results: 8 + 6/7 = 8 6/7 The answer is 8 6/7.

  8. 3 2/6 + 2 3/6 = ? Answer: 5 5/6 Solution: Add the whole numbers: 3 + 2 = 5 Add the fractions: 2/6 + 3/6 = 5/6 Combine the results: 5 + 5/6 = 5 5/6 The answer is 5 5/6.
    Full step-by-step solution

    Step 1: Add the whole numbers: 3 + 2 = 5 Step 2: Add the fractions: 2/6 + 3/6 = 5/6 Step 3: Combine the results: 5 + 5/6 = 5 5/6 The answer is 5 5/6.

  9. 4 3/4 + 2 1/2 = ? Answer: 7 1/4 Solution: Add the whole numbers: 4 + 2 = 6 Add the fractions: 3/4 + 1/2 Convert 1/2 to 2/4 to have a common denominator Add the fractions: 3/4 + 2/4 = 5/4 Convert 5/4 to a mixed number: 5/4 = 1 1/4 Add the whole number parts: 6 + 1 = 7 Keep the fraction: 7 + 1/4 = 7 1/4 The answer is 7 1/4.
    Full step-by-step solution

    Step 1: Add the whole numbers: 4 + 2 = 6 Step 2: Add the fractions: 3/4 + 1/2 Step 3: Convert 1/2 to 2/4 to have a common denominator Step 4: Add the fractions: 3/4 + 2/4 = 5/4 Step 5: Convert 5/4 to a mixed number: 5/4 = 1 1/4 Step 6: Add the whole number parts: 6 + 1 = 7 Step 7: Keep the fraction: 7 + 1/4 = 7 1/4 The answer is 7 1/4.