It's impossible to turn a number with a decimal part (ex. 1.4532) into a whole number (ex. 1,2,3,4). The best you can do is turn it into a mixed number (ex. 1 & 1/4, also known as 1.25). To do that is very easy as long as you know what to do given the situation. I'll explain each situation to you, but not why you do it as that takes quite a lot of extra work.
Situation 1: Terminating decimal.
Examples: 4.24, 0.1938, 1.111
In this, and every other situation, you'll separate the integer and decimal part.
Step 2) Change the decimal part. Here is where the work actually happens. You take the decimal part and make it into a fraction, putting it over the power of 10 corresponding to it's length and english name.
This situation is exactly as it looks. The decimal repeats infinitely, but it repeats in chunks. So let's jump in.
Step 1) Separate. Same as Situation 1. Here we have no integer parts (other than 0) so this step as essentially been done already.
Step 2) Change the decimal part. Similar to Situation 1, but instead of putting the whole decimal over a power of 10, we'll just put the repeating part over 9s, the same number of 9s as there are digits in the repeating part.
A) 0.142857142857... Here 142857 is the repeating chunk. So to change it we'll write it as 142857/999999.
B) 0.333... Here 3 repeats so write it as 3/9
C) 0.345345... Here 345 is the bit that repeats so we'll write it as 345/999
Step 3) Simplify.
142857/999999 -> 1/7
3/9 -> 1/3
345/999 -> 115/333
Step 4) Combine. Same as situation 1, and as we have no integer parts there's nothing to combine.
SPECIAL CASE: Consider 0.0033333. What you do here is the same as situation 2, but you add to the 9s at the bottom the same number of 0s before the repeating part. So to transform this you'd make it 3/900 which simplifies to 1/300.
Drop all the zeros that follow the decimal along with the decimal. If there are non-zero numbers following the decimal, then the number is not a whole number and cannot be represented as one.
2.000 = 2, a whole number
2.003 is not a whole number and cannot be represented as one.
When non zero numbers follow the decimal, the closest you can get is representing it as an improper fraction, 2003/1000. To do that, write the number as 2.003/1 then move the decimal to the end of the numerator and add the same number of zeros to the denominator.
Answers & Comments
It's impossible to turn a number with a decimal part (ex. 1.4532) into a whole number (ex. 1,2,3,4). The best you can do is turn it into a mixed number (ex. 1 & 1/4, also known as 1.25). To do that is very easy as long as you know what to do given the situation. I'll explain each situation to you, but not why you do it as that takes quite a lot of extra work.
Situation 1: Terminating decimal.
Examples: 4.24, 0.1938, 1.111
In this, and every other situation, you'll separate the integer and decimal part.
Step 1) Separate: 4.24 -> 4 + 0.24, 0.1938 -> 0 + 0.1938, 1.111 -> 1 + 0.111
Step 2) Change the decimal part. Here is where the work actually happens. You take the decimal part and make it into a fraction, putting it over the power of 10 corresponding to it's length and english name.
0.24 aka 24 hundredths becomes 24/100
0.1938 aka 1938 ten-thousandths becomes 1938/10000
0.111 aka 111 thousandths becomes 111/1000
You may notice that there are the same number of 0s in the denominator as digits in the numerator, this is not a coincidence.
Step 3) Simplify. This is simple and difficult at the same time. All you do is simplify the fraction.
24/100 -> 6/25
1938/10000 -> 969/5000
111/1000 -> 111/1000 [this cannot be reduced]
Step 4) Put it all together.
4.24 -> 4 & 6/25 [four and six twenty-fifths]
0.1938 -> 696/5000 [six hundred ninety-six five-thousandths]
1/111 -> 1 & 111/1000 [one and one hundred eleven one-thousandths]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Situation 2: Repeating decimal.
Examples: 0.142857142857..., 0.3333..., 0.345345345345...
This situation is exactly as it looks. The decimal repeats infinitely, but it repeats in chunks. So let's jump in.
Step 1) Separate. Same as Situation 1. Here we have no integer parts (other than 0) so this step as essentially been done already.
Step 2) Change the decimal part. Similar to Situation 1, but instead of putting the whole decimal over a power of 10, we'll just put the repeating part over 9s, the same number of 9s as there are digits in the repeating part.
A) 0.142857142857... Here 142857 is the repeating chunk. So to change it we'll write it as 142857/999999.
B) 0.333... Here 3 repeats so write it as 3/9
C) 0.345345... Here 345 is the bit that repeats so we'll write it as 345/999
Step 3) Simplify.
142857/999999 -> 1/7
3/9 -> 1/3
345/999 -> 115/333
Step 4) Combine. Same as situation 1, and as we have no integer parts there's nothing to combine.
SPECIAL CASE: Consider 0.0033333. What you do here is the same as situation 2, but you add to the 9s at the bottom the same number of 0s before the repeating part. So to transform this you'd make it 3/900 which simplifies to 1/300.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Situation 3: Infinite, non-repeating decimal.
Examples: 3.14159..., 2.7182818285...
These cannot be made into fractions and are called Irrational Numbers whereas those in the first two situations are called Rational Numbers.
I hope these steps help, good luck.
Drop all the zeros that follow the decimal along with the decimal. If there are non-zero numbers following the decimal, then the number is not a whole number and cannot be represented as one.
2.000 = 2, a whole number
2.003 is not a whole number and cannot be represented as one.
When non zero numbers follow the decimal, the closest you can get is representing it as an improper fraction, 2003/1000. To do that, write the number as 2.003/1 then move the decimal to the end of the numerator and add the same number of zeros to the denominator.
2.003/1 = 20.03/10 = 200.3/100 = 2003/1000
Do you mean to a fraction? Or a number without a decimal?
What do you mean? If it's not a whole number, you won't be able to make it one without adding or subtracting something from it.