How do you convert 1.8 as a fraction?
1 Answer
I'd like to add the general way to convert finite decimal number into fractions: we know that, since we count in base
Also, note that a power of ten is simply a one followed by as many zeroes as the exponent of the power, so for example
Starting from this assumptions, it's easy to see that if you multiply (or divide) by a power of ten, you shift the beginning of the decimal digits right (or left) by a number of steps which is equal to the number of zeroes: working again with the examples above, we have
So, when you have a finite decimal number, you can alyaws see it as a whole number who has been divided by a proper power of ten. In your case, you can see