Step 1:
The first step to converting 42047580.641768 to a fraction is to re-write 42047580.641768 in the form p/q where p and q are both positive integers. To start with, 42047580.641768 can be written as simply 42047580.641768/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 42047580.641768, which in this case is 6. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 42047580.641768/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 42047580.641768/1 each by 1000000:
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 42047580.641768 as a fraction:
42047580/1 / 1