Worked examples
Two examples
Example 1
A recipe calls for 34 cup of rice. How many cups for 6 batches?
- The same amount 6 times over: multiply. 34 × 6 = 184.
- 184 = 4 24 = 4 12.
Answer: 4 12 cups
Example 2
A tailor had 5 12 yards of fabric and used 2 34 yards. How many yards are left?
- Taking away: subtract. Rewrite with 4: 5 24 − 2 34.
- Borrow: 4 64 − 2 34 = 2 34.
Answer: 2 34 yards
Where this is taught: Quiz 11: Multiplying Fractions, “The word that means multiply”
The drill
Ten problems
This drill also has challenge problems. They use the same skill, set up the way the GED test sometimes sets up a problem, so that it looks new at first.
How many:
Type a whole number, a fraction like 3/4, or a mixed number like 2 1/4, in simplest form. The unit is already there. 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.