the fractions have different denominators
common denominators.
just change the fration with the smallest denominator and add or subtract the way you always do.
No
you would convert the mixed numbers into fractions where the top number is greater than the bottom number, then multiply both the numerator and the denominator by a number that makes the denominators the same.
the fractions have different denominators
the denominators
False [ I THINK ]
common denominators.
Convert them to improper fractions with common denominators and proceed with the adding and subtracting.
just change the fration with the smallest denominator and add or subtract the way you always do.
No
you would convert the mixed numbers into fractions where the top number is greater than the bottom number, then multiply both the numerator and the denominator by a number that makes the denominators the same.
when you add mixed numbers you have a whole number but adding fraction does not.
Because common denominators allow adding and subtracting of numerators. Improper fractions also have simplified rules over mixed numbers when performing multiplication and division.
Mixed numbers can be converted to improper fractions. Then, it is exactly the same as adding proper ones.
Oh, dude, renaming the fractional sum when adding mixed numbers is like wearing a hat indoors - it's not necessary, but it might make things a bit fancier. Technically, you can add mixed numbers without renaming the sum, but it can make the math simpler and easier to understand. So, like, you do you - rename or not, it's all good.