1. Dividing Decimals and Fractions

2. Do Now
Multiply the Following
2.50 x 9

3. S.W.B.A.T
Divide Decimals and Fractions

4. Parts of Dividing: Small Review
We read it as:
Dividend divided by the divisor equals the quotient
Dividend ÷ Divisor = Quotient

5. Dividing Decimals
When dividing by decimals, if the divisor is not a whole number, then move the decimal point to the right to make it a whole number and move the decimal point in the dividend the same number of places
Divide as usual. Keep dividing until the answer terminates or repeats
Put the decimal point directly above decimal point in the dividend

6. Check your answer
Once you have your answer, to check and make sure it is correct you will multiply the quotient by the divisor.
If you are correct, the number you get will equal the dividend
USE ROUNDING AND ESTIMATING

7. What does it mean to round?
Rounding means to make an approximation of your answer
For example 1.29 is approximately 1.3
The directions will tell you what place to round to
For example they can say round to the nearest HUNDREDTH and then your decimal will stop at the hundredths place value
If the number next to the place value you are rounding to is GREATER THAN 5 the number goes up one and if it is LESS THAN 5 it stays the same

8. Practice Rounding Round to the nearest thousandth 1.45678 3.4387364
0.023

9. Remember! When you round, we no longer use the equal sign!
The answer is not exactly equal to the number you have it is approximately equal
In this case we use the approximation sign which is, ≈

10. Practice
With the person sitting next to or across from you work on this problem and then I will go over it with you on the board
Divide 5.39 by 1.1

11. Dividing Fractions
When dividing two fractions remember the phrase “KEEP, CHANGE, RECIPLROCAL”
We take the two fractions:
The first one stays the same
The division symbol turns into a multiplication symbol
We take the reciprocal of the second fraction
NOW THIS IS MULTIPLICATION

12. Lets practice
Change theses to multiplication problems and then solve

13. Partner Problems
Work on the worksheets with the person sitting either next to or across from you
Whatever problems you do not finish will be for homework
Ask me any questions you might have!