First let’s set up the problem:
57÷81 Step 1:
Take the whole number, 81, and multiply it by the denominator of the fraction, 5:
5 x 81 = 405
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:
75⋅81=7405 To display the answer to 7/5 Divided by 81 in decimal form, you can divide the numerator, 405, by the denominator, 7. The answer can be rounded to the nearest three decimal points, if needed:
7405=7405=57.86 So, in decimal form, 7 divided by 5/81 = 57.86
And in its simplest fractional form, 7 divided by 5/81 is 405/7