400/800 Simplified

The first way to simplify the fraction 400/800 is to use the Greatest Common Factor (GCF) of our numerator [400] and denominator [800].

GCF of 400 and 800 is 400

And then divide both the numerator [400] and denominator [800] by the GCF [400].

Another method to reduce the fraction 400/800 to its simplest form is to use the Prime Factors of numerator [400] and denominator [800].

Now we can write down a new fraction expressed by its Prime Factors and cancel common factors in numerator and denominator:

In order to simplify our fraction we can start dividing both the numerator [400] and denominator [800] by the smallest possible number (2,3,4,5... and so on), and repeat this until it is impossible to divide without a reminder.