First let’s set up the problem:
220÷81 Step 1:
Take the whole number, 81, and multiply it by the denominator of the fraction, 2:
2 x 81 = 162
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:
202⋅81=20162 To display the answer to 20/2 Divided by 81 in decimal form, you can divide the numerator, 162, by the denominator, 20. The answer can be rounded to the nearest three decimal points, if needed:
20162=1081=8.1 So, in decimal form, 20 divided by 2/81 = 8.1
And in its simplest fractional form, 20 divided by 2/81 is 81/10