Rule: divide numerator by denominator, or make an equivalent fraction with denominator 10, 100, or 1000.

Fraction	=	3/2
Make an equivalent fraction with denominator 10: multiply numerator and denominator by 5. 3/2 = (3 x 5)/(2 x 5) = 15/10.
As decimal	=	15/10 = 1.5