The calculator below simplyfies the entered fraction to get the lowest possible denominator. It looks for the greatest common factor (GCF) of numerator and denominator. Both are then divided by their greatest common factor to get smallest possible values.
Let's look at the example with numerator equals to 375 and denominator equals to 1000: the GCF of 375 and 1000 is 125. 375 divided by 125 equals 3, 1000 divided by 125 equals 8. The resulting simplified fraction is 3/8.