Adding to 1 whole - Find the fraction that makes the equation true

Sep 30, 2026

Practice and answer-key sheets for solving fraction equations that sum to 1. Each problem gives an expression like “1 + ? = 1” or “? + 4 = 1” with missing numerator/denominator components represented by a question mark. The worksheet targets identifying the fraction that completes the equation so the total equals one whole, and it includes multiple sets of numbered items plus corresponding answer lists for verification.

LanguageEnglish

CategoryExam

FormatPDF

Pages30

Reading Time1 h 16 min

AccessFree to download

Find the fraction that makes the equation true

Problems 1–20

Answers

Adding to 1 whole Name: Find the fraction that makes the equation true. 1) 1 + ? = 1 2) 1 + ? = 1 3 2 3) 1 + ? = 1 4) 1 + ? = 1 4 5 5) ? + 4 = 1 6) ? + 5 = 1 7 10 7) ? + 2 = 1 8) 1 + ? = 1 6 10 9) 3 + ? = 1 10) 6 + ? = 1 6 9 11) 4 + ? = 1 12) ? + 8 = 1 6 9 13) ? + 2 = 1 14) 3 + ? = 1 4 9 15) ? + 8 = 1 16) ? + 4 = 1 10 5 17) 7 + ? = 1 18) 5 + ? = 1 8 9 19) ? + 6 = 1 20) 2 + ? = 1 7 3 Answers 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Math [www.CommonCoreSheets.com](www.CommonCoreSheets.com) 1 1-10 11-20 95 45 90 40 85 35 80 30 75 25 70 20 65 15 60 10 55 5 50 0 Adding to 1 whole Name: Answer Key Find the fraction that makes the equation true. 1) 1 + ? = 1 2) 3 3) 1 + ? = 1 4) 4 5) ? + 4 = 1 6) 7 7) ? + 2 = 1 8) 6 9) 3 + ? = 1 10) 6 11) 4 + ? = 1 12) 6 13) ? + 2 = 1 14) 4 15) ? + 8 = 1 16) 10 17) 7 + ? = 1 18) 8 19) ? + 6 = 1 20) 7 1 2 1 5 ? 1 10 6 9 ? 3 9 ? 5 9 2 3 + ? = 1 + ? = 1 5 + = 1 10 + ? = 1 + ? = 1 8 + = 1 9 + ? = 1 4 + = 1 5 + ? = 1 + ? = 1 Answers 2 1. ⁄ 3 1 2. ⁄ 2 3. 3⁄ 4 4 4. ⁄ 5 3 5. ⁄ 7 6. 5⁄ 10 4 7. ⁄ 6 9 8. ⁄ 10 9. 3⁄ 6 3 10. ⁄ 9 2 11. ⁄ 6 1 12. ⁄ 9 2 13. ⁄ 4 14. 6⁄ 9 2 15. ⁄ 10 1 16. ⁄ 5 17. 1⁄ 8 4 18. ⁄ 9 1 19. ⁄ 7 20. 1⁄ 3 Math [www.CommonCoreSheets.com](www.CommonCoreSheets.com) 1 1-10 11-20 95 45 90 40 85 35 80 30 75 25 70 20 65 15 60 10 55 5 50 0 Adding to 1 whole Name: | Find the fraction that makes the equation true.
1) ~~ ~~13~~ ~~ + ? = 1 2) ~~ ~~12~~ ~~ + ? = 1
3) ~~ ~~14~~ ~~ + ? = 1 4) ~~ ~~15~~ ~~ + ? = 1
5) ? + ~~ ~~47~~ ~~ = 1 6) ? + ~~ ~~150~~ ~~ = 1
7) ? + ~~ ~~26~~ ~~ = 1 8) ~~ ~~110~~ ~~ + ? = 1
9) ~~ ~~36~~ ~~ + ? = 1 10) ~~ ~~69~~ ~~ + ? = 1 | | | | | | | | | | | | Answers
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12. | | | | | | | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | 11) ~~ ~~46~~ ~~ + ? | = | 1 | 12) ? | + | 8
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[www.CommonCoreSheets.com](www.CommonCoreSheets.com) | | | 1 | | 1-10
11-12 | 92 | 83 | 75 | 67 | | 58 | 50 | 42 | 33 | 25 | 17 | | | | | | | | | | 8 | 0 | | | | | | | | | | Adding to 1 whole Name: Find the fraction that makes the equation true. 1) 3 + ? = 1 2) 5 3) ? + 6 = 1 4) 8 5) ? + 1 = 1 6) 2 7) ? + 5 = 1 8) 10 9) ? + 2 = 1 10) 3 11) ? + 1 = 1 12) 4 13) ? + 3 = 1 14) 7 15) 1 + ? = 1 16) 7 17) ? + 1 = 1 18) 3 19) 3 + ? = 1 20) 9 2 5 ? ? ? ? 2 7 3 4 4 7 1 8 ? + ? = 1 7 + = 1 9 2 + = 1 4 4 + = 1 5 8 + = 1 9 + ? = 1 + ? = 1 + ? = 1 + ? = 1 1 + = 1 6 Answers 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. Math [www.CommonCoreSheets.com](www.CommonCoreSheets.com) 2 1-10 11-20 95 45 90 40 85 35 80 30 75 25 70 20 65 15 60 10 55 5 50 0 Adding to 1 whole Name: Answer Key Find the fraction that makes the equation true. 1) 3 + ? = 1 2) 5 3) ? + 6 = 1 4) 8 5) ? + 1 = 1 6) 2 7) ? + 5 = 1 8) 10 9) ? + 2 = 1 10) 3 11) ? + 1 = 1 12) 4 13) ? + 3 = 1 14) 7 15) 1 + ? = 1 16) 7 17) ? + 1 = 1 18) 3 19) 3 + ? = 1 20) 9 2 5 ? ? ? ? 2 7 3 4 4 7 1 8 ? + ? = 1 7 + = 1 9 2 + = 1 4 4 + = 1 5 8 + = 1 9 + ? = 1 + ? = 1 + ? = 1 + ? = 1 1 + = 1 6 Answers 2 1. ⁄ 5 3 2. ⁄ 5 3. 2⁄ 8 2 4. ⁄ 9 1 5. ⁄ 2 6. 2⁄ 4 5 7. ⁄ 10 1 8. ⁄ 5 9. 1⁄ 3 1 10. ⁄ 9 3 11. ⁄ 4 5 12. ⁄

FAQs

What do the question-mark blanks represent in these equations?

They represent the missing fraction value needed to complete each equation so the sum equals 1 whole.

How is success determined for each item?

Each equation is correct when the completed fraction makes the total exactly 1.

What sections are included in the worksheets?

The sheets include the practice problems (numbered) and an answer key with the corresponding fraction results.

Sep 30, 2026

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