First let’s set up the problem:
521÷16 Step 1:
Take the whole number, 16, and multiply it by the denominator of the fraction, 5:
5 x 16 = 80
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:
215⋅16=2180 To display the answer to 21/5 Divided by 16 in decimal form, you can divide the numerator, 80, by the denominator, 21. The answer can be rounded to the nearest three decimal points, if needed:
2180=2180=3.81 So, in decimal form, 21 divided by 5/16 = 3.81
And in its simplest fractional form, 21 divided by 5/16 is 80/21