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Performing fraction operations is different from performing basic operations on whole numbers. Fractions require you to consider both the numerator and denominator when making calculations. Fortunately, when subtracting fractions with like denominators, the numerator is your only concern. Let''s look at the steps you''ll take to make these calculations.
Whenever you subtract fractions, you always want to make sure that your denominators are the same. Fractions with the same denominators are called like fractions.
In order to subtract fractions with like denominators, we''ll first subtract the numerators, and then write the difference over the denominator.
Let''s look at an example:
Find:
When subtracting fractions, you might get answers that are not in lowest terms. When a fraction is in lowest terms, the numerator and denominator are relatively prime -- or have no common factors other than 1.
If you get an answer that is not in lowest terms, you''ll want to reduce the fraction. Here''s how to do it:
First, let''s find:
a. Find:
Least Common Denominators (LCDs)
Subtracting Fractions with Unlike Denominators
ACCUPLACER Arithmetic Flashcards
Basic Arithmetic Diagnostic Tests
When first learning to subtract fractions with like denominators, it can be tough to remember every step in the process. For example, your student might remember to make sure the denominators are the same, but forget not to subtract the denominators. If your student is struggling with this concept or would like help with assignments or test preparations, tutoring can make a big difference. Find out the many ways a private instructor can use their expertise to help your student excel by contacting the Educational Directors at Varsity Tutors today.