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Math Tutor's Solution: 21.1986 as a fraction is 105993/5000
Methods
Converting 21.1986 to a fraction, Step-by-Step from a Math Tutor
Step 1:
The first step to converting 21.1986 to a fraction is to re-write 21.1986 in the form p/q where p and q are both positive integers. To start with, 21.1986 can be written as simply 21.1986/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 21.1986, which in this case is 4. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 21.1986/1 each by 10 to the power of that many digits. For instance, for 0.45, there are 2 fractional digits so we would multiply by 100; or for 0.324, since there are 3 fractional digits, we would multiply by 1000. So, in this case, we will multiply the numerator and denominator of 21.1986/1 each by 10000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer:
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