We can only add or subtract fractions if they have the same denominators
Simplify them.
1) Convert the fractions to equivalent fractions, to ensure they have the same denominator. 2) Once they have the same denominator, just add or subtract the numerators. 3) As with most problems with fractions, check whether you can simplify the final result.
Subtract the numerators as we normally subtract them and then divide the resultant by the denominator. It's just simple like that.
Yes the bottom has to be the same when subtracting fractions. The bottom (or denominator) tells you what you're working with. You cannot subtract thirds from halves just as you cannot subtract oranges from tissues.
Make the fractions equivalent then subtract
What is the answer for 8 1/3 - 5 2/6
it stay the same when you subtract fractions and when you add fractions.
You need a common denominator in order to add or subtract fractions.
I assume you mean, with different denominators. If you want to add the fractions, subtract them, or compare them (determine which one is greater), you have to convert them to similar fractions (fractions with the same denominator) first. Converting to similar fractions is not necessary, and usually doesn't even help, if you want to multiply or divide fractions.
no, to add and subtract like and unlike fractions the denominator has to be the same,
Dissimilar fractions are fractions that have different denominators.
You have to convert them to equivalent similar fractions (fractions with the same denominator) first.
In fractions, you can NEVER add or subtract
Because you can't add or subtract fractions that have different denominators. Making them like fractions, by multiplying so the denominators are the same, you can add and/or subtract them.
Numerators
By finding the lowest common multiple of the denominators.