Simplify: (4/5) + (3/10)

To simplify the expression (4/5) + (3/10), it is important to first have a common denominator for the fractions involved. The denominators here are 5 and 10. The least common multiple of these numbers is 10.

To rewrite (4/5) with a denominator of 10, you multiply both the numerator and the denominator by 2. Thus, (4/5) becomes (8/10). Now we can rewrite the original expression:

(4/5) + (3/10) = (8/10) + (3/10).

Now, since the denominators are the same, you can simply add the numerators:

8 + 3 = 11.

This gives us (11/10). When you divide the numerator by the denominator, you get 1.1.

Thus, the simplified answer to (4/5) + (3/10) is indeed 1.1.