Algebra I – Fractions – Part 02
Channel: Goat Math
Date: 2019-03-15

Simplifying fractions by removing common factors. Cancelling out factors when a numerator and denominator have common factors. Numerator is the number above the division line in a fraction. The number below the division line in a fraction is called denominator.
Addition and subtraction fractions by using common denominators. To add or subtract fractions with the same denominator just add or subtract the numerators and write the sum over the common denominator. To add or subtract fractions with different denominators first, find the smallest multiple (LCM) of both numbers then rewrite the fractions as equivalent fractions with the LCM as the denominator. 
Dividing by a fraction is the same as multiplying by its reciprocal.