DefinitionFraction Cross Multiplication Definition: Fraction cross multiplication is a method for simplifying fractions by multiplying numerators between the fractions and denominators in the opposite direction. This process eliminates fractions in fractions, which makes addition or subtraction of fractions or comparing the size of the fractions easier. Cross multiplication of a fraction is used in algebra, arithmetic, and fractions equations solving. For Example: If you want to compare two fractions ba and dc by cross multiplication, you have to check the product of a*d and b*c.
