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

Fraction	=	6/25
Make an equivalent fraction with denominator 100: multiply numerator and denominator by 4. 6/25 = (6 x 4)/(25 x 4) = 24/100.
As decimal	=	24/100 = 0.24