Final answer:
To simplify the expression (5)/(6y) - (13)/(12y), find a common denominator for the two fractions. Multiply the numerators and denominators appropriately to get fractions with the same denominator. Then, subtract the numerators.
Step-by-step explanation:
To simplify the expression (5)/(6y) - (13)/(12y), we need to find a common denominator for the two fractions. The least common multiple of 6y and 12y is 12y.
To rewrite the fractions with a common denominator of 12y, we need to multiply the numerator and denominator of the first fraction by 2, and the numerator and denominator of the second fraction by 1. This gives us (10)/(12y) - (13)/(12y).
Now that we have the fractions with the same denominator, we can subtract the numerators. (10 - 13)/(12y) = (-3)/(12y).