First let’s set up the problem:
312÷86 Step 1:
Take the whole number, 86, and multiply it by the denominator of the fraction, 3:
3 x 86 = 258
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:
123⋅86=12258 To display the answer to 12/3 Divided by 86 in decimal form, you can divide the numerator, 258, by the denominator, 12. The answer can be rounded to the nearest three decimal points, if needed:
12258=243=21.5 So, in decimal form, 12 divided by 3/86 = 21.5
And in its simplest fractional form, 12 divided by 3/86 is 43/2