you'd be changing the size of the piece (or pieces) ______________ Here is an analogy which may or may not help: Mary has 3 cats, Don has 4 cats. How many cats do they have in all? The answer is 7 cats, not 7 ccaattss. John has 1 quarter. Marie has 1 quarter (a quarter is 1/4 of a dollar). Together they have 2 quarters, not 2 eighths.
it stay the same when you subtract fractions and when you add fractions.
You DO need a common denominator to add, subtract, or compare fractions. You DO NOT need a common denominator to multiply or divide fractions.
Unless you are using a calculator that adds them for you, it is much harder to add fractions with uncommon denominators. Having the same denominator allows you to only have to add the numerators for your answer.
You first convert them to equivalent fractions with a common denominator. Or you convert them to decimal fractions.
find a common denominator for all three and then add all of the numerators together and keep the same 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.
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 do.
Yes, you are.
you make fractions equivalent denominators, you add the numerators and put it over the denominator