Changing Decimals To Fractions
Follow the steps:
1. Name the place value of the last digit.
2. Write that place value as the denominator(bottom
number).
3. Write everything to the right of the decimal point as
the numerator (top number).
4. Write everything to the left of the decimal point as a
whole number.
5. Reduce the fraction.
Example:
1.98 === the 8 is in the hundredths place
/100 === the bottom number will be 100
98/100 === the top number will be 98
1 98/100 === the 1 goes on the outside
1 49/50 === reduce
Example:
0.234 === the 4 is in the thousandths place
/1000 === the bottom number will be 1000
234/1000 === the top number will be 234
234/1000 === the 0 doesn't have to be written
117/500 === reduced
Changing Fraction To Decimal
Follow the steps:
1. Divide the bottom number into the top number.
2. Keep the whole number to the left of the decimal point.
3. Remember rules for dividing decimals.
a. Exact answers are best.
b. Repeating answers are next.
c. If neither, then round to the nearest hundredths
place.
Example:
5/8 === divide the bottom into the top
5 ÷ 8 === add a decimal and 0's
.625 === exact answer
Example:
4/7 === divide the bottom into the top
4 ÷ 7 === add a decimal and 0's
.571.. === not exact or repeating
.57 === round to the nearest hundredth
Example:
1/3 === divide the bottom into the top
1 ÷ 3 === add a decimal and 0's
.33333 === repeating
.3 with bar over the top (the computer won't let me do this)
Go on to the activity that is listed at the bottom of the page. Your homework will be
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| Last updated 2008/09/28 07:33:21 PDT | Hits 244 |
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