SOLUTION: I need help with this problem: Simplify (4r+1/3r)-(r-2/5r)

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Question 328228: I need help with this problem: Simplify (4r+1/3r)-(r-2/5r)
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
find common denominator
the denominators showing are 1, 3, 5; so 15 is the least common denominator

%2860r%2F15%29%2B%285%2F15r%29-%2815r%2F15%29%2B%286%2F15r%29
%2860r%2F15%29%28r%2Fr%29%2B%285%2F15r%29-%2815r%2F15%29%28r%2Fr%29%2B%286%2F15r%29
%2860r%5E2%2F15r%29%2B%285%2F15r%29-%2815r%5E2%2F15r%29%2B%286%2F15r%29
%2845r%5E2%2F15r%29%2B%2811%2F15r%29
highlight%28%2845r%5E2%2B11%29%2F15r%29