Homeschool Teacher
03182011, 06:25 AM


For reducing fractions, I find the GCD by collecting the factors of just the smaller denominator, starting from the largest factor (the smaller number itself) and working backward toward 1. Then the first number you come by that divides evenly by the larger denominator is your GCD. Then you divide both the numerator and denominator by that GCD to get the fraction in its reduced form.
