Multiplication of Fraction and whole numbers.pptx

Multiplication of fraction

1. Good Afternoon!

2. Multiplication of Fractions and Whole Numbers

3. Remember: To multiply a fraction and a whole number: If the whole number is divisible by the denominator, divide the whole number by the denominator, then multiply the quotient and the numerator .

4. Remember: If the whole number is not divisible by the denominator, write the product of the whole number and the numerator over the same denominator, then simplify.

5. Example : Multiply     1 If the whole number is divisible by the denominator, divide the whole number by the denominator.     9 9 x   2 If yes, divide the whole number by the denominator. Is 9 divisible by 3?     9 3 9       3

6. Example : Multiply     3 Multiply the quotient and the numerator.     9 9 x   3   2 3 9       3 6   x 9   6

7. Example : Multiply     1 If the whole number is divisible by the denominator, divide the whole number by the denominator.     24 24 x   2 If yes, divide the whole number by the denominator. Is 24 divisible by 8?     24 8 24       3

8. Example : Multiply     3 Multiply the quotient and the numerator.     24 24 x   3   3 8 24       3 9   x 24   9

9. Example : Multiply     1 If the whole number is divisible by the denominator, divide the whole number by the denominator.     30 30 x   2 If yes, divide the whole number by the denominator. Is 30 divisible by 6?     30 5 30       5

10. Example : Multiply     3 Multiply the quotient and the numerator.     30 30 x   5   5 6 30       5 25   x 30   25

11. Example : Multiply     1 If the whole number is divisible by the denominator, divide the whole number by the denominator.     9 9 x   2 If NO, multiply the whole number and the numerator. Copy the denominator. Is 9 divisible by 5?     9    

12. Example : Multiply     3 Simplify.     9 9 x         36 ÷ 5   7 R. 1     9   7  

13. Example : Multiply     1 If the whole number is divisible by the denominator, divide the whole number by the denominator.     15 15 x   2 If NO, multiply the whole number and the numerator. Copy the denominator. Is 15 divisible by 8?     15    

14. Example : Multiply     3 Simplify.     15 15 x         15 ÷ 8   1 R. 7     15   1  

15. Example : Multiply     1 If the whole number is divisible by the denominator, divide the whole number by the denominator.     10 10 x   2 If NO, multiply the whole number and the numerator. Copy the denominator. Is 10 divisible by 4?     10    

16. Example : Multiply     3 Simplify.     10 10 x         30 ÷ 7   4 R. 2     10   4  

17. All for Thee, my Jesus All for Thee, Amen.