what is 3 3 5 as a decimal

5 ÷ 12 = 3.4166666666666666 and then add the whole part (3): 0.417 + 3 = 3.4166666666666666 Another way to convert fraction 3 and 5/12 to decimal is to change this mixed fraction to an improper fraction. To do so we need first multiply the whole part (3) by the denominator (12): 3 × 12 = 36. HYJYG5C.