Add, subtract, multiply, or divide any two fractions instantly. Shows full step-by-step working and automatically simplifies the result to its lowest terms.
Fill in the details and
your result appears here.
Type the numerator (top) and denominator (bottom) of the first fraction.
Select +, −, ×, or ÷.
Type the second fraction. The result updates instantly with full working shown.
For addition and subtraction, find the LCM of denominators first. For multiplication, multiply numerators and denominators directly. Always simplify using GCD at the end.
Find the LCM of the two denominators, convert both fractions to that denominator, then add the numerators. E.g. 1/3 + 1/4: LCM=12, so 4/12 + 3/12 = 7/12.
Divide both numerator and denominator by their GCD (Greatest Common Divisor). E.g. 8/12: GCD=4, so 8÷4 / 12÷4 = 2/3.
Flip the second fraction (take its reciprocal) and multiply. E.g. 3/4 ÷ 1/2 = 3/4 × 2/1 = 6/4 = 3/2.
A whole number combined with a proper fraction. E.g. 7/4 = 1¾. This calculator shows both improper fraction and mixed number forms.
Find the least common denominator (LCD), convert each fraction, then add the numerators. For 1/3 + 1/4: LCD=12, so 4/12 + 3/12 = 7/12.