First let’s set up the problem:
512÷51 Step 1:
Take the whole number, 51, and multiply it by the denominator of the fraction, 5:
5 x 51 = 255
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:
125⋅51=12255 To display the answer to 12/5 Divided by 51 in decimal form, you can divide the numerator, 255, by the denominator, 12. The answer can be rounded to the nearest three decimal points, if needed:
12255=485=21.25 So, in decimal form, 12 divided by 5/51 = 21.25
And in its simplest fractional form, 12 divided by 5/51 is 85/4