First, let’s break down each piece of the problem. We have the fraction, 21/15, which is also the dividend, and the whole number, or the divisor, which is 9:
Numerator of the dividend: 21
Denominator of the dividend: 15
Whole number and divisor: 9
So what is 21/15 Divided by 9? Let’s work through the problem, and find the answer in both fraction and decimal forms.
First let’s set up the problem:
Step 1:
Take the whole number, 9, and multiply it by the denominator of the fraction, 15:
15 x 9 = 135
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:
To display the answer to 21/15 Divided by 9 in decimal form, you can divide the numerator, 135, by the denominator, 21. The answer can be rounded to the nearest three decimal points, if needed:
So, in decimal form, 21 divided by 15/9 = 6.43
And in its simplest fractional form, 21 divided by 15/9 is 45/7
If this problem was a little difficult or you want to practice your skills on another one, give it a go on any one of these too!
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