Question 328228
find common denominator
the denominators showing are 1, 3, 5; so 15 is the least common denominator
{{{((4*15)r/15)+(5/(3*5)r)-(15r/15)+((2*3)/(5*3)r)}}}
{{{(60r/15)+(5/15r)-(15r/15)+(6/15r)}}}
{{{(60r/15)(r/r)+(5/15r)-(15r/15)(r/r)+(6/15r)}}}
{{{(60r^2/15r)+(5/15r)-(15r^2/15r)+(6/15r)}}}
{{{(45r^2/15r)+(11/15r)}}}
{{{highlight((45r^2+11)/15r)}}}