Fractions! Otherwise you don't have anything to add.
a common denominator
A common denominator is required to add or subtract fractions and not otherwise.
No, the denominators have to be the same.
it stay the same when you subtract fractions and when you add fractions.
Fractions will need to have the same denominator to add the numerator then reduce the answer as needed to simplest forms. 1/2 + 1/3=3/6 + 2/6=5/6
They didn't. It isn't supposed to add up to one, rather fractional amounts can be formed by adding various combinations of the fractions. If the eguptions needed to represent the value 1, they wouldn't do it with fractions.
In fractions, you can NEVER add or subtract
Change them into mixed numbers and add the integers and fractions together ensuring that the fractions have a common denominator.
Fundamental math skills are needed for a job in accounting. An accountant must know how to add, subtract, divide, multiply, and do fractions.
You can add fractions if you have a scientific calculator. All you have to do is press the b/c button. If you don't have one, you could always turn the fraction into a decimal.