Common denominators.
When adding or subtracting fractions their denominators must be the same
Yes, you must.
you must make the fractions equivalent and with the same denomenator
A Common Denominator
Common denominator
Yes inasmuch that the denominators of the fractions must be common to each other.
Yes but they all must have the same common denominator
Adding fractions involves combining two or more fractions to create a new fraction that represents the total value. To do this accurately, the fractions must have a common denominator; if they don't, the fractions must first be converted to equivalent fractions with the same denominator. Once the fractions share a common denominator, their numerators can be added together while the denominator remains unchanged. The result can often be simplified if necessary.
Because when adding or subtracting fractions the denominators must have the same values
When subtracting or adding fractions the denominators must be the same if they are not then the LCM must be found.
The denominators must be the same, the numerators can be different.
Find the lowest common denominator