Created by and copyright of Larry Perez. Funded by the state of California through Saddleback College. More information on videos, resources, and lessons at Algebra2Go.
Questions answered by this video:
How do you find the lowest common denominator?
What is an LCD?
How do you add and subtract fractions?
How do you find the lowest common denominator when there is a variable in a fraction?
How do you divide fractions?
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This video has many example problems of adding and subtracting fractions by finding common denominators. Subtracting a negative and adding / subtracting fractions with a variable in the denominator are also explained. Division of fractions is also covered. Finally, order of operations is used to compute solutions in a flurry of review problems.