To reduce a fraction, we must divide both the numerator and denominator by a number that goes into them both evenly.
4/8 reduced by 4 is 1/2
Reduce Fractions to lowest terms
A fraction is in lowest terms when the numerator and denominator have no common factor other than 1.
In order to work with fractions efficiently, it is important to reduce the fraction to lowest terms.
The new fraction is still equivalent to the original fraction.
Ladder Method for simplifying fractions
• Write numerator and denominator on one line
• Draw the L shape
• Divide out common prime numbers (starting with the smallest)
• Simplified fraction is in the bottom
Greatest Common Factor (GCF)
Greatest Common Factor is the greatest factor that divides two numbers.
The GCF of 24 and 36 is 2 x 2 x 3= 12