First let’s set up the problem:
1521÷2 Step 1:
Take the whole number, 2, and multiply it by the denominator of the fraction, 15:
15 x 2 = 30
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:
2115⋅2=2130 To display the answer to 21/15 Divided by 2 in decimal form, you can divide the numerator, 30, by the denominator, 21. The answer can be rounded to the nearest three decimal points, if needed:
2130=710=1.43 So, in decimal form, 21 divided by 15/2 = 1.43
And in its simplest fractional form, 21 divided by 15/2 is 10/7