Add, subtract, multiply and divide fractions with automatic simplification.
Add, subtract, multiply and divide fractions with automatic simplification.
Enter values above and click Calculate — results will appear here with the formula explained.
Fractions are added or subtracted by rewriting both over a common denominator, then combining the numerators. Multiplication is simpler: multiply the numerators together and the denominators together.
Division works like multiplying by the reciprocal — flip the second fraction upside down and multiply. Every result here is simplified by dividing out the greatest common divisor, and improper fractions are also shown as mixed numbers.
Mixed numbers such as 1½ are supported: enter the whole part along with the numerator and denominator, and they are converted internally to improper fractions first.
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Fraction Calculator computes add, subtract, multiply and divide fractions with automatic simplification. Formula: a/b + c/d = (ad + cb)/(bd). Example: 1/2 + 1/4: rewrite over a common denominator of 4 to get 2/4 + 1/4 = 3/4, which is already fully simplified and equals 0.
Fractions are added or subtracted by rewriting both over a common denominator, then combining the numerators. Multiplication is simpler: multiply the numerators together and the denominators together.
Division works like multiplying by the reciprocal — flip the second fraction upside down and multiply. Every result here is simplified by dividing out the greatest common divisor, and improper fractions are also shown as mixed numbers.
Mixed numbers such as 1½ are supported: enter the whole part along with the numerator and denominator, and they are converted internally to improper fractions first.
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1/2 + 1/4: rewrite over a common denominator of 4 to get 2/4 + 1/4 = 3/4, which is already fully simplified and equals 0.75 as a decimal.
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