Sunday, November 13, 2011

Fractions to decimal number

Use a calculator to change each fraction to a decimal number. Round to the place value indicated.

A decimal number is always out of 1. Whatever you do to the bottom you do to the top.

Step 1: Divide the denominator to itself that would give you one.
Step 2: Then divide the denominator to the numerator, which will give you a decimal number.
Step 3: Then round it to the place value indicated.

Question: 6 a: Round to the tenths place.


I took out one four from the decimal because you have to round it to the tenths and four is lower than five so it has to stay. If it was higher than five the digit in the tenths place would increase by one.






Question 6 b:
Round to the thousandths place.


171÷ 280= 0.61071429 I looked at the digit in the ten thousandths place and it was seven, and seven is over five so the zero is increased by one.








Question 6 c: Round to the hundredths place.




43÷60=0.71666667 I looked at the digit in the thousandths place and it was a six, and six is over five so the digit in the hundredths place increased by one.




Question 6 d: Round to the thousandths place.



19÷313=0.06070288 I looked at the digit in the ten thousandths place and it was seven, and seven is over five so the digit is increased by one.





Click this link if you want to learn more about fractions and decimals.

Here's a video about converting fractions to decimals.

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