Adding and subtracting rational expressions.
1/6m + 2/5m +4/m
then simplify
as with all problems of addition of fractions, you want the LCD. In this case, that is 30m.
Now add things up the way you always do with fractions.
1/6m + 2/5m +4/m
then simplify
Now add things up the way you always do with fractions.