Adding & Subtracting Fractions — Answer Key
Part A: Fill in the Blank
Write the missing word or number on each line.
1. 125 + 215 = 335.
Add whole numbers: 1+2=3. Add fractions: 25+15=35. Answer: 335.
2. 346 − 126 = 226.
Subtract whole numbers: 3−1=2. Subtract fractions: 46−26=26. Answer: 226.
3. 238 + 148 = 378.
Add whole numbers: 2+1=3. Add fractions: 38+48=78. Answer: 378.
4. 459 − 219 = 249.
Subtract whole numbers: 4−2=2. Subtract fractions: 59−19=49. Answer: 249.
5. 114 + 324 = 434.
Add whole numbers: 1+3=4. Add fractions: 14+24=34. Answer: 434.
6. 5710 − 3210 = 2510.
Subtract whole numbers: 5−3=2. Subtract fractions: 710−210=510. Answer: 2510.
7. 213 + 113 = 323.
Add whole numbers: 2+1=3. Add fractions: 13+13=23. Answer: 323.
8. 658 − 438 = 228.
Subtract whole numbers: 6−4=2. Subtract fractions: 58−38=28. Answer: 228.
9. 327 + 247 = 567.
Add whole numbers: 3+2=5. Add fractions: 27+47=67. Answer: 567.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
135 + 215
→ 345
556
478 − 138
→ 348
239
216 + 346
→ 556
348
559 − 329
→ 239
345
135+215=345; 478−138=348; 216+346=556; 559−329=239.