Create the equivalent fractions. Multiply the numerator by the number of times that your original denominator goes into the common denominator. For example, if you want to add 2/3 and 1/4 and are using 12 as the common denominator, you would multiply 2 by 4 and 1 by 3 to get 8/12 ...
2. Add the Numerators Once you have two fractions with the same denominator, you can simply add the numerators, and then write the answer over the same denominator. To continue the example, to add the improper fractions 15/12 and 13/12, you'll first add the numerators: ...
However, finding the least common denominator isn’t hard—you’ll just need to be familiar with your multiplication tables. For example, let’s try to find the least common denominator, rather than just a common denominator, for the same fractions we used above: 12and112. To do this, lis...
To add fractions with whole numbers, rewrite the whole number as a fraction with a denominator of 1, find a common denominator, and add. To add fractions with mixed numbers, rewrite the mixed number as an improper fraction, find a common denominator, and add.Adding...
To add unlike fractions, you need to find the least common denominator. The denominator is the number on the bottom. The least common denominator is the smallest shared multiple of the denominators. With 2 and 4, it's 4! So, we multiply 1/2 by 2/2 to get 2/4. Then, we have 1/...
Set both fractions to have a lowest common denominator. If adding or subtracting more than two fractions, complete the operation on two fractions at a time before moving on to the next fraction. The denominator is the lower number of a fraction. To find the lowest common denominator, multiply...
To add fractions which have different (or "unlike") denominators, follow these steps: Find a common denominator by: a) finding theLeast Common Multiple, or b) just multiplying the two denominators together. Convert the fractions to the common denominator by multiplying the fractions by useful for...
Once you’ve listed these out, you can identify the greatest common factor to calculate the fraction’s lowest form. 3) Practice simplifying improper fractions Some conversions will leave you with a numerator greater than the denominator, or an improper fraction. To simplify this, you need to ...
Introducing:•firstaddend•secondaddend•sumHOWTOADDFRACTIONSThispictureshowsanadditionexamplewithtwoaddendsandasum.Thefirstaddend1/5iscombinedwiththesecondaddend3/5togivethesum4/5.Noticehowthesum4/5combinesthered1/5withtheblue3/5.AddFractions11/5and3/5arelikefractionsbecausethedenominatorsarethesame...
To figure out a fraction of a number, all you need to do is divide that number by the denominator of the fraction and then multiply that result by the numerator.