Rule: divide numerator by denominator, or make an equivalent fraction with denominator 10, 100, or 1000.
Fraction=21/20
21/20 is an improper fraction. 21 รท 20 = 1 remainder 1, which equals 1 1/20 as a mixed number. Convert 1/20 to a decimal: multiply numerator and denominator by 5. 1/20 = (1 x 5)/(20 x 5) = 5/100 = 0.05.
As decimal=1.05
Final Answer: 1.05