In adding dissimilar fractions first you have to find the LCD!
-> LCD means Least Common Denominator.
*For example
2/3 3 6 9 12
+ 3/4 4 8 12
the LCD is 12 put 12 under the -
divide 12 to denominator
and write the answer in left of given question
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For adding or substracting fractions first of all we should calculate the LCM( Lowest Common Multiplier) of the denominators in both of the fractions.
What is the definition of Adding and Subtracting Like Fractions
adding fractions
When adding or subtracting fractions first make sure that the denominators are the same if they aren't then find the lowest common denominator and alter the fractions accordingly
They have to have a common denominator