Add, subtract, multiply, and divide fractions with automatic simplification
Adds, subtracts, multiplies, and divides fractions, returning results in lowest terms. Addition and subtraction require a common denominator; multiplication and division do not.
a/b + c/d = (ad + bc) / bd | a/b ÷ c/d = ad / bc
a, cnumeratorsb, ddenominators (non-zero)Find the least common denominator (LCD), convert each fraction so both have the LCD, then add the numerators. For example, 1/3 + 1/4: LCD is 12, so 4/12 + 3/12 = 7/12.
Divide the numerator by the denominator. For example, 3/8 = 3 ÷ 8 = 0.375.
A mixed number combines a whole number and a proper fraction, like 2 3/4. To convert to an improper fraction: (2 × 4 + 3) / 4 = 11/4.