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Do Now

Do Now. Solve . Write in simplest form. 10/8/2014 2-3 B Divide Whole #’s by Fractions. Student Example. Reciprocal - one of two numbers with a product of 1 -in real terms- flip the numerator and denominator. =. Example 1. Example 2. Find the reciprocal of 7. Method:.

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Do Now

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  1. Do Now Solve. Write in simplest form.

  2. 10/8/2014 2-3 B Divide Whole #’s by Fractions

  3. Student Example Reciprocal- one of two numbers with a product of 1 -in real terms- flip the numerator and denominator =

  4. Example 1

  5. Example 2 Find the reciprocal of 7.

  6. Method: • To divide a whole number by a fraction, multiply its reciprocal.

  7. KCF H A N G E E E P L I P

  8. Example 3 • Step 1 – Keep your first fraction. 3 1 3 = ÷ 1 4 1

  9. Step 2 – Change the operation to multiplication. 3 1 3 = x ÷ 1 4 1

  10. Step 3 – Flip the second fraction. 3 1 3 4 = x ÷ 1 4 1 1

  11. Step 4 – Multiply the numerators, then multiply the denominators. 3 4 12 = x 1 1 1

  12. Step 5 – Simplify (if possible). 3 4 12 = = 12 x 1 1 1

  13. Example 4 Multiply numerators. Multiply denominators.

  14. Example 5

  15. Multiply by the reciprocal. 2 Divide 4 and 2 by the GCF, 2. 1 Simplify. Answer: So, there are 6 runners in the race.

  16. Your Turn!

  17. Homework • Pg. 122 #1-28 Evens • Ch. 1 Test Corrections due tomorrow!

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