Worked examples
Two examples
Example 1
1 12 × 2 13 =
- Make each one improper: 1 12 = 32, and 2 13 = 73.
- Multiply across: 216 = 72.
Answer: 3 12
Example 2
2 34 × 4 =
- Make it improper: 2 34 = 114. And 4 = 41.
- Multiply across: 444 = 11.
Answer: 11
Where this is taught: Quiz 11: Multiplying Fractions, “Mixed numbers must be made improper first”
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.