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Adding and Subtracting Fractions and Decimals - Printable Mathematics Worksheets grade 7 - Wayground

Adding and Subtracting Fractions and Decimals

12 questions

7th - 7th Grade

Mathematics

Adding and Subtracting Fractions and Decimals is a free printable Grade 7 mathematics worksheet for practicing operations with signed fractions and decimals. Across 12 questions, students identify equivalent fractions, find usable common denominators, add and subtract fractions, simplify results, and apply rules for double negatives and same-sign operations. They also solve decimal subtraction problems, including problems with different numbers of decimal places. The worksheet uses six multiple-choice questions, five fill-in-the-blank items, and one multiple-select question. This varied format checks both procedural fluency and students’ understanding of the steps involved, such as finding a common denominator before operating and simplifying at the end. It is suitable for independent practice, review, or a short formative assessment in Grade 7 math. A complete answer key is included so teachers can quickly check work and address errors in sign rules, denominator selection, fraction simplification, or decimal computation.

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Worksheets

Adding and Subtracting Fractions and Decimals

Total questions: 12

Name
Class
Date
1.

Which of these is equivalent to 9/12?

a)
1/2
b)
3/4
c)
2/3
d)
5/6
2.

Solve 1/9 - (-8/2) and put it into simplest form.

a)

74/18

b)

3 1/2

c)

-3 1/2

d)

-70/18

3.

True or False: You need to find a common denominator BEFORE adding or subtracting two fractions with different original denominators.

a)

True

b)

False

4.

Solve -8 - (-7)

(a)  

5.

A double negative turns into a

(a)  

6.

The last step in an addition or subtraction problem that involves fractions is to...

(a)  

7.

8.24 - 4.287 is.....

a)

-12.527

b)

-3.953

c)

12.527

d)

3.953

8.

Same sign, (a)   and keep

9.

Which of these could be used as the common denominator of 7/2 and 1/3?

a)

7

b)

6

c)

2/3

d)

18

10.

Solve -1/3 - (1/6) and put it into its simplest form.

(a)  

11.

The first step in an addition or subtraction problem with fractions is....

a)

Find a common denominator

b)

Multiply your numerators

c)

Add your numerators

d)

Simplify

12.

Solve 0.24 - 2.74

a)

-3.98

b)

3.98

c)

2.54

d)

-2.54

Answer Key

Adding and Subtracting Fractions and Decimals

Total questions: 12

1.
b) 3/4
2.
b)

3 1/2

3.
a)

True

4.
-1
5.
positive
6.
simplify
7.
d)

3.953

8.
add
9.
b)

6

, d)

18

10.
-1/2
11.
a)

Find a common denominator

12.
d)

-2.54

FAQs

What does the Adding and Subtracting Fractions and Decimals worksheet cover?

This Grade 7 worksheet covers adding and subtracting signed fractions and decimals through 12 multiple-choice, fill-in-the-blank, and multiple-select questions. Students practice finding common denominators, identifying equivalent fractions, handling double negatives and same-sign operations, aligning decimal values, and simplifying fraction answers.

How can I use this worksheet to teach adding and subtracting fractions and decimals?

Introduce the fraction items by modeling how to find a common denominator, perform the operation, and simplify the result; then connect the sign-rule fill-ins to worked examples such as subtracting a negative. Use the decimal questions afterward to have students explain place-value alignment and the sign of each difference, asking them to justify why a selected answer is reasonable.

What mistakes should I watch for on this fractions and decimals worksheet?

Watch for students choosing a denominator that is not a common multiple, skipping simplification, or treating subtraction of a negative as subtraction rather than adding the positive. On the decimal items, students may misalign place values or select the wrong sign, while the multiple-select denominator question may reveal that they can find one valid denominator but not recognize more than one.

How do I assign and grade this Adding and Subtracting Fractions and Decimals worksheet?

Wayground provides this worksheet as a printable PDF and as a digital quiz, and it includes a complete answer key for all 12 items. For printable submissions, you can scan student work with the Wayground for Teachers app to help grade responses.

How can I differentiate this worksheet for my students?

For the fraction, sign-rule, and decimal items on this worksheet, use Advanced Settings to adjust font spacing and font size for a less dense or more compact page, or enable a dyslexia-friendly font. You can also use the translation option in Advanced Settings to provide the worksheet in another language.

Where can I find more free worksheets like this on Wayground?

Wayground offers a comprehensive collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to support essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.