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How can I multiply a fraction by a whole number?

How can I multiply a fraction by a whole number?. Team B: Tyderah Bradley, Troy Erby, Cassandra Farzalo, Frank Giannamore, Kari Harbaugh, Holly Hartshorne. To multiply a fraction by a fraction: Multiply numerator by numerator Multiply denominator by denominator Simplify if possible. Example:.

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How can I multiply a fraction by a whole number?

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  1. How can I multiply a fraction by a whole number? Team B: Tyderah Bradley, Troy Erby, Cassandra Farzalo, Frank Giannamore, Kari Harbaugh, Holly Hartshorne

  2. To multiply a fraction by a fraction: Multiply numerator by numerator Multiply denominator by denominator Simplify if possible Example: Let’s start with a review of multiplying fractions:

  3. Now you try to multiply a fraction by a fraction: Write your answers to these 3 problems on your white board:

  4. Let’s check your answers:

  5. Now, let’s review how to change a whole number to a fraction: • Any number divided by 1 equals that number. See: 5 1=5 • So, you can put any whole number over 1 without changing it’s value. See:

  6. So, how can I use what I know to multiply a fraction times a whole number? The problem:

  7. Steps to multiplying a whole number by a fraction: 1.Change the whole number to a fraction 2.Multiply numerator by numerator and denominator by denominator 3. Simplify if possible

  8. Hmmm…. But how can I simplify an improper fraction??? • Just remember TI- BO! • No, not that kind! • TI-BO means top in- bottom out. So:

  9. Let’s review the steps we just learned: • Put whole number over 1 • Multiply numerators and denominators • Simplify if possible • If my answer is still improper, do TI-BO!

  10. Now you try it on your whiteboard:

  11. Check your answers and your work:

  12. So, how did you do? • Give me a thumbs up if you got both problems right! • Show me a thumbs to the side if you got one problem right! • Point your thumb down to the ground if you still need some help.

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