First let’s set up the problem:
64÷81 Step 1:
Take the whole number, 81, and multiply it by the denominator of the fraction, 6:
6 x 81 = 486
Step 2:
The result of this multiplication will now become the denominator of the answer. The answer to the problem in fraction form can now be seen:
46⋅81=4486 To display the answer to 4/6 Divided by 81 in decimal form, you can divide the numerator, 486, by the denominator, 4. The answer can be rounded to the nearest three decimal points, if needed:
4486=2243=121.5 So, in decimal form, 4 divided by 6/81 = 121.5
And in its simplest fractional form, 4 divided by 6/81 is 243/2