Write the decimal number as a fraction (over 1) 3.1818 = 3.1818 / 1 Multiplying by 1 to eliminate 4 decimal places we multiply top and bottom by 4 10's Numerator (N) N = 3.1818 × 10 × 10 × 10 × 10 = 31818 Denominator (D) D = 1 × 10 × 10 × 10 × 10 = 10000 N / D = 31818 / 10000 Simplifying your fraction = 31818/10000 = 15909/5000 = 3 909/5000. Hope this helped!!!