Deepening understanding of multiplication with fractions

12 questions

1. A number that has exactly 2 factors is a ___ number.
2. Which of the following will be less than 20?
3. {2}\over{3} × {1}\over{8}is ___ than {2}\over{3} × {1}\over{9}.
4. Using this fact, {8}\over{85} × {25}\over{140} = {100}\over{5950}, which of the following are true?
5. Calculate {2}\over{3} × {3}\over{4} × 15. Give your answer as a mixed number.
6. Calculate {132}\over{385} × {15}\over{18} by writing each numerator and denominator as a product of its prime factors.
7. Which of the following is the correct definition for an improper fraction?
8. Convert 3 {{1} \over {3}} into an improper fraction.
9. Calculate 3 {{1} \over {3}} × 13.
10. Which of the following is not a correct method for calculating 1 {{2} \over {5}} × 4 {{3} \over {4}}?
11. Calculate 2 {{3} \over {5}} × 3 {{2} \over {3}}.
12. Use the most efficient method to calculate 5 {{1} \over {4}} × 1 {{3} \over {7}}. Give your answer in its simplest form.

License: OGL