I learned to always change the denominators before adding or subtracting the numerators. You must always have a common denominator before adding or subtracting.
When adding or subtracting fractions their denominators must be the same
A Common Denominator
you must make the fractions equivalent and with the same denomenator
Similarities: the sum does not depend on which number you start with (distributive)Differences: you must find a common denominator for the fractions (whole numbers have a common denominator [1]
I learned to always change the denominators before adding or subtracting the numerators. You must always have a common denominator before adding or subtracting.
When adding or subtracting fractions their denominators must be the same
Find the lowest common denominator
Yes, you must.
Common denominators.
you have to find the common factor of the two number befor adding them.
A Common Denominator
you must make the fractions equivalent and with the same denomenator
Similarities: the sum does not depend on which number you start with (distributive)Differences: you must find a common denominator for the fractions (whole numbers have a common denominator [1]
You can only add like to like. There is no mechanism for adding different types of fraction.
Yes inasmuch that the denominators of the fractions must be common to each other.
Yes but they all must have the same common denominator