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Here are some rules for working with the same denominator or numerator...
Rule #1
When two fractions have the same denominator, the bigger fraction is the one with the bigger numerator.
2/6 < 5/6 The size of the fraction is the same (sixths), the numerator is what is different (2<5)
Rule # 2
When comparing fractions that have the same numerator, the bigger fraction is the one with the smaller denominator.
Therefore, 2/10 > 2/15.
In this case you are looking at the same portion (numerator). This means you look at the denominator and find out which is larger or smaller. Remember the bigger the number the smaller it is.
More Ordering and Comparing Advice.....
1. Think of 1/2 and 1. If there are a set of fractions you can look to see which are less than half, a half, or close to 1.
EX. 4/8, 1/3, 9/10
1/3 is less than half
4/8 is half
9/10 is almost 1
2. Use division. Compare 3/4 and 5/6. You can divide the numerator by the denominator. You will have numbers that are easier to compare
3/4= .75
5/6= .8333
3/4 < 5/6
3. Use a picture or number line or fraction strips. It's pretty basic but if all else fails. Just make sure that the item (shape, or number line) is the same size/length and try to divide it as evenly as possible.
4. Find a common denominator. By doing so you create an equivalent fraction (the same fraction with a different name).
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What is comparing and ordering fractions?
Ordering fractions is putting them in order, usually least to greatest, smallest to largest. In order to determine whether a fraction is larger or smaller than another one, it is necessary to compare them. This is done by determining a common denominator and comparing the numerators.
When do you use cross multiplication?
When comparing or simplifying fractions.
What does comparing fractions mean?
it means that you look at 2 or more fractions and see their simalaritys and differences
How is ordering fractions on a number line similar to and different from ordering whole numbers on a number line?
It will be easier to know what to write
What do you do when comparing fractions and the denominator and the numerator are different?
Convert them into equivalent fractions with the same denominator and then compare the numerators.
What is comparing and ordering fractions?
Ordering fractions is putting them in order, usually least to greatest, smallest to largest. In order to determine whether a fraction is larger or smaller than another one, it is necessary to compare them. This is done by determining a common denominator and comparing the numerators.
How comparing and ordering fractions?
Convert them all to their decimal equivalents (by dividing each numerator by its denominator), then you can easily see which numbers are greater than others.
What is comparing and ordering rational numbers?
Rational numbers are roots, decimals, fractions, and whole numbers. Bascially anything that can become a decimal. Irrational numbers are like pi. I'm pretty sure to be irrational, they have to repeat. Anyway, ordering them and comparing them means looking at them and seeing which is smallest and largest. Then you order them (smallest to largest or whatever it says).
Why does the butterfly method work when comparing fractions?
it works when comparing fractions by multiplying the fractions to see whitch one is greater not greater and equal
What is a definition for ordering fractions?
to order fractions you can cross multiply two fractions at a time or you can convert all the fractions into decimals.
What does comparing fractans mean?
The correct spelling is fractions instead of fractans. Comparing fractions means to tell which fraction is smaller and which is bigger.
What is comparing and ordering numbers?
The comparing and ordering of numbers is referred to as factorization. Numbers are factored into certain multiples such that the resolution of the entity into the factors when multiplied together will give the original entity.
What is the name for fractions that are commonly used for comparing measuring and estimating?
benchmark fractions
Explain how comparing fractions with like denominators differs from comparing fractions with unlike denominators?
Because when you compare fractions with the same denominators, you do not have to find the least common denominator (LCM or LCD).
Comparing fractions sheet 1?
RIGHT
Comparing fractions without using an lcd?
It is easy: just convert to decimal fractions.
When do you use cross multiplication?
When comparing or simplifying fractions.
