Step 1:
The first step to converting 1742221425.979 to a fraction is to re-write 1742221425.979 in the form p/q where p and q are both positive integers. To start with, 1742221425.979 can be written as simply 1742221425.979/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 1742221425.979, which in this case is 3. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 1742221425.979/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 1742221425.979/1 each by 1000:
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 for 1742221425.979 as a fraction:
1742221425/1 / 1