First let’s set up the problem:
1820÷21 Step 1:
Take the whole number, 21, and multiply it by the denominator of the fraction, 18:
18 x 21 = 378
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:
2018⋅21=20378 To display the answer to 20/18 Divided by 21 in decimal form, you can divide the numerator, 378, by the denominator, 20. The answer can be rounded to the nearest three decimal points, if needed:
20378=10189=18.9 So, in decimal form, 20 divided by 18/21 = 18.9
And in its simplest fractional form, 20 divided by 18/21 is 189/10