Sharon had 1 3/5 gallons of paint and used only 6/8 of that for a project. how many gallons of paint did she use?

Let's convert fractions to decimals for an easier calculation.
3/5 = .6
6/8 = .75
So, we know that Sharon used 3/4, or .75, of 1.6 gallons of paint.
1.6 * .75 =
1.2
So, Sharon used 1.2 gallons of paint, or 1  gallons.

The answer would be a