First let’s set up the problem:
816÷21 Step 1:
Take the whole number, 21, and multiply it by the denominator of the fraction, 8:
8 x 21 = 168
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:
168⋅21=16168 To display the answer to 16/8 Divided by 21 in decimal form, you can divide the numerator, 168, by the denominator, 16. The answer can be rounded to the nearest three decimal points, if needed:
16168=221=10.5 So, in decimal form, 16 divided by 8/21 = 10.5
And in its simplest fractional form, 16 divided by 8/21 is 21/2