• anonymous
Before adding or subtracting two fractions they are converted into like fractions. Explain with examples why this is necessary.
  • Stacey Warren - Expert
Hey! We 've verified this expert answer for you, click below to unlock the details :)
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
  • schrodinger
I got my questions answered at in under 10 minutes. Go to now for free help!
  • anonymous
Take for example (1/4)-(1/5). The way it is written, we cannot do anything with it. So when you add or subtract fractions you need to find a common denominator. In this case the common denominator is 20. 20 is the smallest number both 4 and 5 will divide into. So if the common denominator is 20, 5 times 4 gives you 20 so you multiply both the numerator and denominate by 5 to get (5/20). You do the same process to (1/5) and get (4/20). Now we can subtract because they are like fractions with the same denominator. Kind of a process that just needs to be followed. Hope it helps to some extent.

Looking for something else?

Not the answer you are looking for? Search for more explanations.