Showing posts with label frations. Show all posts
Showing posts with label frations. Show all posts

Wednesday, February 10, 2010

Ordering fraction from least to greatest

How do i put fractions in order from least to greatest?

Change the denominators to be common and then convert.
EX. 4/5,5/15, 6/30
Put these in order
you have to see what is the LCM for each of the denominators. Like 30. so 4/5 turns into 24/30. I used 30 as my common denominator and to get the numerator I said how many times does 5 go into 30? 6 times! So 6 times 4 equals 24 which is my new numerator. Do this with all the fractions and then you can just put them in order by the top number.


Sunday, February 7, 2010

Fractions into Decimals into Percents

directions: write each fraction as a decimal rounded to the nearest hundredth.
a. 3/8


When turning a fraction into a decimal you have to divide the top Number ( numerator) by the bottom number (denominator). So for example you would divide 8 divided by 3. you get the answer 2.6666666. to round to the nearest hundredth you round to the second number after the decimal. so it would round to 2.67 is the first answer.

CHANGING DECIMALS INTO FRACTIONS
Directions:change .10 into a faction

Move the decimal over twice to the right and put the number(10) over 100 and then reduce the fraction. 10/100 reduces to 1/10.

CHANGING A FRACTION INTO A PERCENT
When you are changing a fraction into a percent you have to divide the numerator into the demoninator and this will give you a decimal answer. Move the decimal point in this answer twice to the left and you now have our percent.

Here are some online tutoring sites I recommend for more help.