First let’s set up the problem:
312÷90 Step 1:
Take the whole number, 90, and multiply it by the denominator of the fraction, 3:
3 x 90 = 270
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⋅90=12270 To display the answer to 12/3 Divided by 90 in decimal form, you can divide the numerator, 270, by the denominator, 12. The answer can be rounded to the nearest three decimal points, if needed:
12270=245=22.5 So, in decimal form, 12 divided by 3/90 = 22.5
And in its simplest fractional form, 12 divided by 3/90 is 45/2