Worked examples
Two examples
Example 1
2 14 + 3 12 =
- Add the whole numbers: 2 + 3 = 5.
- Add the fractions: 14 + 24 = 34.
Answer: 5 34
Example 2
4 23 + 1 23 =
- Wholes: 4 + 1 = 5. Fractions: 23 + 23 = 43.
- 43 is 1 13, so carry the 1: 5 + 1 = 6.
Answer: 6 13
Where this is taught: Quiz 10: Adding and Subtracting Fractions, “Mixed numbers: carrying and borrowing again”
The drill
Ten problems
How many:
Type a fraction with a slash, like 3/4, and a mixed number with a space, like 2 1/4. Give answers in simplest form. Then press Check my answers at the bottom.Write each answer on the line, in simplest form. The answer key, with the reasoning, is on the last page.