Step 1:
The first step to converting 667058.5307421 to a fraction is to re-write 667058.5307421 in the form p/q where p and q are both positive integers. To start with, 667058.5307421 can be written as simply 667058.5307421/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 667058.5307421, which in this case is 7. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 667058.5307421/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 667058.5307421/1 each by 10000000:
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 667058.5307421 as a fraction:
667058/1 / 1