First let’s set up the problem:
1215÷13 Step 1:
Take the whole number, 13, and multiply it by the denominator of the fraction, 12:
12 x 13 = 156
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:
1512⋅13=15156 To display the answer to 15/12 Divided by 13 in decimal form, you can divide the numerator, 156, by the denominator, 15. The answer can be rounded to the nearest three decimal points, if needed:
15156=552=10.4 So, in decimal form, 15 divided by 12/13 = 10.4
And in its simplest fractional form, 15 divided by 12/13 is 52/5