First let’s set up the problem:
1213÷15 Step 1:
Take the whole number, 15, and multiply it by the denominator of the fraction, 12:
12 x 15 = 180
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:
1312⋅15=13180 To display the answer to 13/12 Divided by 15 in decimal form, you can divide the numerator, 180, by the denominator, 13. The answer can be rounded to the nearest three decimal points, if needed:
13180=13180=13.85 So, in decimal form, 13 divided by 12/15 = 13.85
And in its simplest fractional form, 13 divided by 12/15 is 180/13