Adding and Subtracting Mixed Numbers Worksheet for 7th Grade with Answers

For Grade 7 and Grade 8 Students


Generate Dynamic Adding and Subtracting Mixed Numbers Worksheet for 7th Grade with Answers

Dynamically Generated Adding and Subtracting Mixed Numbers Worksheet for 7th Grade with Answers

Adding and Subtracting Mixed Numbers Math Quiz – Online Test

15 Word Problems
Collect 15 Points

A delivery truck carried 17 1/2 tons of gravel. After delivering 9 3/4 tons, how much gravel is left?

A student read 6 1/2 pages of a book on Monday and 4 1/4 pages on Tuesday. How many pages did the student read in total?

A store sold 10 1/4 pounds of potatoes. After selling 3 1/3 pounds more, how many pounds of potatoes did they sell in total?

A box contains 20 1/4 apples. After removing 12 2/3 apples, how many apples are left?

A swimming pool was filled with 10 1/2 gallons of water. After using 4 2/3 gallons for cleaning, how much water is left?

John has 12 1/2 pounds of apples. He gave 5 3/4 pounds to his friend. How many pounds of apples does he have left?

A plant grew 3 1/4 inches in the first week and 5 1/2 inches in the second week. How much did the plant grow in total?

A baker made 15 1/2 cookies. She sold 8 3/4 cookies. How many cookies does she have left?

A recipe calls for 4 1/2 cups of flour. If Maria already has 2 1/4 cups, how many more cups does she need?

Emily baked 12 1/2 cupcakes. She sold 8 3/4 cupcakes. How many cupcakes are left?

A farmer harvested 9 3/4 bushels of apples. He sold 4 2/3 bushels. How many bushels does he have left?

Jake had 15 3/4 meters of fabric. He used 6 2/3 meters for a project. How much fabric does he have left?

A garden had 13 1/4 plants. After removing 5 1/3 plants, how many plants are left?

Sally had 7 1/4 feet of ribbon. She used 3 2/3 feet for a project. How much ribbon is left?

Tom had 9 3/4 meters of string. He used 4 1/2 meters. How much string does he have left?


 

Skills Focused: Addition and Subtraction of Mixed Numbers, Simplification of Fractions, Fraction Comparison and Estimation, Conversion Between Improper Fractions and Mixed Numbers, Problem Solving and Word Problem Interpretation, Estimation and Approximation, Understanding Units of Measurement

Here you can find adding and subtracting mixed numbers worksheets and math quizzes for 7th and 8th grade students with answers. These worksheets and online tests will help students to master the addition and subtraction of mixed numbers. With six worksheets containing 15-word problems, students can practice solving real-world scenarios involving fractions. These worksheets are downloadable in PDF format, making them easy to print for offline use, and they come complete with answer keys for easy self-assessment.

The worksheets are crafted to focus on key skills such as simplifying fractions, converting between improper fractions and mixed numbers, and performing addition and subtraction operations with mixed numbers. In addition, students will improve their estimation skills, understand fraction comparison, and work on interpreting word problems effectively.

For the students who prefer an interactive experience can pratice the math quiz/test. This quiz mirrors the worksheets’ content, giving students the chance to practice solving problems in a timed, test-like environment. The online quiz is complete with answer keys and students can see their progress and identify areas for improvement.

Students can improve a better understanding of mixed numbers, build confidence, and sharpen their problem-solving skills by practicing these worksheets and quizzes. Whether for classroom use or at-home study, these resources offer an engaging and effective way to master a crucial math topic for 7th and 8th-grade students.

How to Solve a Adding and Subtracting Mixed Numbers Word Problem


Problem: Sally had 7 1/4 feet of ribbon. She used 3 2/3 feet for a project. How much ribbon is left?


Time needed: 1 minute

Learn step-by-step how to solve adding and subtracting mixed numbers word problem

  1. Step 1

    Convert mixed numbers into improper fractions.

    7 1/4 = 29/4
    3 2/3 = 11/3

  2. Step 2

    Find the least common denominator (LCD) for the fractions.

    The LCD of 4 and 3 is 12.

  3. Step 3

    Adjust both fractions to have the common denominator of 12.

    29/4 becomes 87/12
    11/3 becomes 44/12

  4. Step 4

    Subtract the fractions.

    87/12 – 44/12 = 43/12

  5. Step 5

    Convert the result back to a mixed number.

    43/12 = 3 7/12

  6. Step 6

    Final answer = 3 7/12 feet of ribbon are left.

Frequently Asked Questions (FAQs)

How do I subtract mixed numbers with different denominators?

To subtract mixed numbers with different denominators, first convert both mixed numbers into improper fractions. Then, find a common denominator (usually the least common denominator), adjust the fractions accordingly, and subtract the numerators. Once you have the result, convert the improper fraction back into a mixed number if needed.

What is the best way to add mixed numbers?

When adding mixed numbers, start by converting the mixed numbers into improper fractions. Afterward, find a common denominator for the fractions. Once the denominators are the same, add the numerators, and then convert the improper fraction back into a mixed number. It’s also important to simplify your result if necessary.

How do you add and subtract fractions with mixed numbers?

To add and subtract fractions with mixed numbers, first turn the mixed numbers into improper fractions. After that, either find a common denominator (if needed) or add/subtract the fractions directly. If the result is an improper fraction, convert it back into a mixed number. Lastly, simplify the fraction if possible.

How do you convert mixed numbers into improper fractions?

Converting a mixed number into an improper fraction is easy! Multiply the whole number part by the denominator of the fractional part, and then add the numerator of the fraction. Place this result over the original denominator. For example, for the mixed number 3 1/2, multiply 3 by 2 (giving you 6), then add the numerator (1), so you get 7/2 as the improper fraction.

What are some tips for solving mixed numbers problems quickly?

One tip for solving mixed numbers problems quickly is to practice converting between mixed numbers and improper fractions. This step will make adding and subtracting much easier. Also, always simplify your fractions when you can and double-check that the denominators match before adding or subtracting. If you’re working with word problems, read carefully to understand how the fractions relate to the context.

Can I practice adding and subtracting mixed numbers online?

Yes! There are plenty of online quizzes and worksheets available to practice adding and subtracting mixed numbers. These online resources often include interactive exercises, so you can work through problems at your own pace and check your answers immediately. It’s a great way to build confidence and get extra practice.

How do you subtract mixed numbers with borrowing?

When subtracting mixed numbers and you need to borrow, first make sure the fraction of the first number is larger than the second number. If not, borrow 1 from the whole number and turn it into the equivalent fraction. This will help you subtract correctly. After borrowing, proceed with subtracting the fractions and then the whole numbers.