No but the denominators must be the same and you just add the numerators. If the denominators are different and you have to find which is greater you have to find a denominator that both numbers can multiply into. For example, 5/6 and 3/12 will be our fractions. 6 times to equals 12. Since 12 is the other denominator 3/12 stays the same. Thats the only time you can change the denominator.
No.
Yes you have to add with the same denominator. when ever you do fractions they have to have the same denominator no matter what. So thats a yes
if it has a denominator
You can add or subtract fractions only if they are "like" fractions, that is, only if they have the same denominator - unless you know your fractions really well.
Change them into mixed numbers and add the integers and fractions together ensuring that the fractions have a common denominator.
No.
Yes you have to add with the same denominator. when ever you do fractions they have to have the same denominator no matter what. So thats a yes
it stay the same when you subtract fractions and when you add fractions.
You first convert them to similar fractions, i.e., to fractions that have the same denominator.* Step one: find a common denominator.* Step two: convert both fractions to equivalent fractions that have that denominator.
You look for a common denominator; convert the fractions to equivalent fractions with the denominator you found; then you do the addition itself.
You need a common denominator in order to add or subtract fractions.
Yes.
if it has a denominator
You can add or subtract fractions only if they are "like" fractions, that is, only if they have the same denominator - unless you know your fractions really well.
Change them into mixed numbers and add the integers and fractions together ensuring that the fractions have a common denominator.
Yes, you are.
Yes you do.