Subtracting Fractions Calculator
Subtract fractions with like or unlike denominators. Handles proper fractions, improper fractions, and mixed numbers. Shows step-by-step working including finding the LCD, converting denominators, and simplifying the result.
Enter the first fraction (numerator and denominator) and the second fraction. Click Calculate. The calculator: 1. Finds the Least Common Denominator (LCD) if denominators differ. 2. Converts both fractions to the LCD. 3. Subtracts the numerators. 4. Simplifies the result using GCF. 5. Converts to a mixed number if applicable.
Example: 3/4 − 1/6 = 9/12 − 2/12 = 7/12
a/b − c/d = (ad − bc) / (bd)
More precisely using LCD: 1. Find LCD = LCM(b, d) 2. Convert: a/b = (a × LCD/b) / LCD 3. Convert: c/d = (c × LCD/d) / LCD 4. Subtract numerators: (a × LCD/b) − (c × LCD/d) 5. Put over LCD, then simplify.
Simplify: divide numerator and denominator by GCF.
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