The document discusses converting fractions to decimals and decimals to fractions through division. It provides steps for changing fractions to decimals by adding a decimal and zero before dividing repeatedly, and for changing decimals to fractions by writing the decimal as the numerator over the place value of the last digit as the denominator. Examples of converting decimals to fractions are provided. Scientific notation is also covered, explaining how to express very large or small numbers as a product of a number from 1 to 10 and a power of 10.

1. • 1. GED Practice (Fractions)
• 2. Discuss HW
• 3. Changing Fractions to Decimals/Decimals
to Fractions
• 4. Scientific Notation
• HW: Review “Quiz”

2. • The only way to change a fraction to a decimal
is through division.
Step 1: Add a
decimal and a
.6 zero.
5) 3.0 Step 2: Divide
30 until it
0 repeats or
terminates.

4. • The only way to write a decimal as a fraction is
to know the place value of the last digit.
Step 1: Write
the number
“thirty-five hundredths”
without the
decimal in the
Step 2: Reduce numerator and
the place value
of the last digit
÷5 in the
denominator.
÷5

5. • Convert the following decimals to fractions.
.85
.125
.4

6. • Scientific Notation is
another way of writing $15,600,000,000,000
very large or very small
numbers.
• Very large or small
numbers can be 0.00000000023
expressed as a product
of a number between 1
and 10 and a power of
10.

7. • Step 1: Move the decimal place
to the right or left so that the $15,600,000,000,000
number is between one and
ten.
• Step 2: Multiply this number by
ten raised to the power
indicating how many times you
moved the decimal.
0.00000000023
• Large numbers will be moved to
the left.
• Small numbers will be moved to
the right and the exponent will
be negative.