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How do you find which fraction is bigger when there are different denominators?
Wiki User
∙ 10y ago
There are two main methods.
The first is to use the least common multiple (LCM) of the two denominators to change both fractions to the same denominator. After that, it is simple:the bigger numerator belongs to the bigger fraction.
The other method is to cross multiply and compare products.
If you want to compare A/B and C/D, then compare AD and BC instead. The numerator of the bigger fraction is in the bigger multiple (shown in bold):
If AD is bigger, then A/B is bigger while if BC is bigger then C/D is bigger.
Wiki User
∙ 10y ago
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What do you need to do before you add a fraction?
You need to find the least common multiple of their denominators.
How do you determine what fraction is greater than the other?
Find the least common denominator and convert them to equivalent fractions so that the denominators are the same. Choose the one with the greatest denominator.
Can you add numbers with different numerators?
Yes, 'fractions' with different numerators can be added, but not with different denominators. In the case where you have different denominators, you must find the LCM (lowest common multiple).
What method do we use to find the LCD of two or more fraction?
By finding the lowest common multiple of the denominators.
When you subtract fractions do you subtract the denominator?
No. If the denominators are the same, you subtract the numerators. If the denominators are different you have to find the least common denominator.
How do you find out a fraction if it is subtracted by different denominators?
You find the least comon multiples of the fractions' denominators.
How do you find inverse function?
If its a fraction then we can change the numerators and denominators upside down .This is in case of fraction.
How do I find a common denominator in a fraction?
By finding the lowest common multiple of the denominators
How do you subtract improper fraction?
If the denominators (bottom numbers) are the same (eg. 11/6 - 7/6) you just subtract the numerators (top numbers) eg. 11-7=4 so 4/6. If the denominators are different you have to find equivalent fractions where the denominators are the same.
What do you need to do before you add a fraction?
You need to find the least common multiple of their denominators.
How would you use the multiplication rule to find common denominators?
multiply the nominator and denominator of each fraction by the denominator of the other fraction
How do you determine what fraction is greater than the other?
Find the least common denominator and convert them to equivalent fractions so that the denominators are the same. Choose the one with the greatest denominator.
How do you find equivalent fraction?
first simplify the fraction then multiply the denominators times the numerators and see if they are equal
Can you add numbers with different numerators?
Yes, 'fractions' with different numerators can be added, but not with different denominators. In the case where you have different denominators, you must find the LCM (lowest common multiple).
What method do we use to find the LCD of two or more fraction?
By finding the lowest common multiple of the denominators.
What is the common denominators of 2 fiths?
You need at least two denominators to find something in common between them.
Do you mulitiply the denominators?
First, multiply the numerators and write the product of the numerators above a fraction bar. Next, multiply the denominators and write that product underneath the fraction bar. You don't have to find a common denominator. You do, however, have to reduce your answer to simplest terms.
