First let’s set up the problem:
420÷64 Step 1:
Take the whole number, 64, and multiply it by the denominator of the fraction, 4:
4 x 64 = 256
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:
204⋅64=20256 To display the answer to 20/4 Divided by 64 in decimal form, you can divide the numerator, 256, by the denominator, 20. The answer can be rounded to the nearest three decimal points, if needed:
20256=564=12.8 So, in decimal form, 20 divided by 4/64 = 12.8
And in its simplest fractional form, 20 divided by 4/64 is 64/5