First let’s set up the problem:
1912÷21 Step 1:
Take the whole number, 21, and multiply it by the denominator of the fraction, 19:
19 x 21 = 399
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:
1219⋅21=12399 To display the answer to 12/19 Divided by 21 in decimal form, you can divide the numerator, 399, by the denominator, 12. The answer can be rounded to the nearest three decimal points, if needed:
12399=4133=33.25 So, in decimal form, 12 divided by 19/21 = 33.25
And in its simplest fractional form, 12 divided by 19/21 is 133/4