How To Add Fractions With Pi

at this point, you’ve learned three differentways to find a common denominator for two fractions. in this lesson, you’ll use what you’velearned to add and subtract fractions with different denominators by first finding acommon denominator. first, let’s review the methods you’velearned to find a common denominator.

How To Add Fractions With Pi, you know that for some fractions, one of thedenominators is a factor of the other. for example, when you add one half and threefourths, you can see that two is a factor of four. this means the easiest way to find a commondenominator in this situation is to use the

larger denominator, 4 in this case, as thecommon denominator. you should always check to see if one denominatoris a factor of the other. when it is, you use the larger denominatoras the common denominator. but this method only applies when one denominatoris a factor of the other. in all other cases, you have two choices forfinding the common denominator. the first is simply to multiply the denominators. the second is to find the least common multipleof the denominators and use that as the common denominator. the question is, which of these last two shouldyou use?

multiplying the denominators is easy and fast,but it means you might end up with a fraction that needs to be reduced. finding the least common multiple takes alittle more time, but it means you work with smaller numbers and often avoids having toreduce a fraction later. in this course, you may choose either methodto use when solving problems.