Compute 1 1/2 - (-7/5). Give an exact simplified answer.
Exact result: ____________________
CCSS 7.NS.A.1 · signed addition & subtraction
Add and Subtract Rational Numbers Worksheet Generator
Practice addition and subtraction across rational forms instead of isolating integers from fractions and decimals. Every answer is computed with exact numerator/denominator arithmetic, so a decimal-looking prompt never creates a hidden rounding rule.
Live worksheet preview
Add & Subtract Rational Numbers
Add & subtract rational numbers · Grade 7 standard · Seed 271701
1.
2.
Compute 16/5 - 1.5. Give an exact simplified answer.
Exact result: ____________________
3.
Compute 4 - (-3 1/2). Give an exact simplified answer.
Exact result: ____________________
4.
Compute 3 1/3 + 27/8. Give an exact simplified answer.
Exact result: ____________________
5.
Compute 0.6 + 1/10. Give an exact simplified answer.
Exact result: ____________________
6.
Compute -7/6 - 5/2. Give an exact simplified answer.
Exact result: ____________________
7.
Compute 5 1/6 - (-3.5). Give an exact simplified answer.
Exact result: ____________________
8.
Compute 3.8 + (-27/10). Give an exact simplified answer.
Exact result: ____________________
9.
Compute -1/5 + (-2). Give an exact simplified answer.
Exact result: ____________________
10.
Compute -4 - (-3 3/4). Give an exact simplified answer.
Exact result: ____________________
Exact-construction rule: operations use normalized integer numerator/denominator pairs, number-line positions use exact ticks, repeating decimals come from remainder cycles, and money contexts use exact cents. No answer depends on binary floating-point rounding.
Teaching note 1
Treat subtraction as adding the additive inverse when sign changes become confusing.
Teaching note 2
Keep fraction and decimal conversions exact; do not round before the final result.
Teaching note 3
Use additive inverses as a reason for why a number plus its opposite equals zero.
Continue the 7.NS progression
Move to another Grade 7 rational-number skill
Frequently asked questions
Do these worksheets mix fractions and decimals?
Yes. Standard and challenge modes deliberately mix signed fractions, decimals, and mixed numbers so students practice the full rational-number system.
Are answers rounded?
No. Results are simplified exactly; terminating decimal equivalents may be shown alongside the exact fraction.