When the numerator is less than the denominator then it is a common fraction but if the numerator is greater than the denominator then it is an improper fraction.
The least common denominator is the least common multiple of the denominators of the fractions.
There are common fractions, improper fractions and equivalent fractions
You don't need a common denominator to divide fractions.
To compare two fractions, convert them to a common denominator.To compare two fractions, convert them to a common denominator.To compare two fractions, convert them to a common denominator.To compare two fractions, convert them to a common denominator.
Just multiply the two denominators of your fractions, the answer you get is a common denominator.
Dissimilar fractions.
you have to compare the common fractions
To subtract fractions with like denominators, subtract the numerators , and write the difference over the denominator. Example : Find 45−25 . Since the denominators are the same, subtract the numerators.
No only when adding or subtracting fractions a common denominator is needed
No, you only need a common denominator when adding or subtracting fractions.
If the denominators are not the same, then you have to use equivalent fractions which do have a common denominator . To do this, you need to find the least common multiple (LCM) of the two denominators. To add fractions with unlike denominators, rename the fractions with a common denominator. Then add and simplify.
by finding the common denominator of the fractions