# How to add a mixed fraction

2
by annaPA

2015-10-26T15:19:25+08:00

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To add a mixed fraction like  and  , you must express them first to 'improper fraction' (Just comment if you want to know how to express to 'improper fraction.).
The improper fraction of  is
and the improper fraction of  is

Then, you have to find the LCD (Least Common Denominator).  and  have the denominators 2 and 4. So, the LCD is 4, which can be divided by both denominators 2 and 4.

The first addend is  , and we have to multiply both numerator and denominator by 2 to gain  to have 4 as our new denominator.
The other addend will stay the same  .

Now, we can add  and is equal to  . Just add the numerators and copy the denominator.

You can express your sum  to mixed fraction and it will be  .
2015-10-28T16:05:11+08:00
Just add the whole numbers then find the LCD of the fraction. EZ