What is 1.28478 as a fraction?

Answer: 1.28478 as a fraction equals 128478/100000 or 64239/50000

Here is the solution for converting 1.28478 to a fraction:

Step 1:

First, we write 1.28478 as  

Step 2:

Next, we multiply both the numerator and denominator by 10 for each digit after the decimal point. Remember the numerator is the top part of the fraction and the denominator is the bottom part!

1.28478/1

  =  

1.28478 x 100000/1 x 100000

  =  

128478/100000

Step 3:

Next, we find the Greatest Common Factor (GCF) for 128478 and 100000. A factor is a number that divides into another number without any remainder.

The factors of 128478 are: 1  2  3  6  7  14  19  21  23  38  42  46  49  57  69  98  114  133  138  147  161  266  294  322  399  437  483  798  874  931  966  1127  1311  1862  2254  2622  2793  3059  3381  5586  6118  6762  9177  18354  21413  42826  64239  128478 
The factors of 100000 are: 1  2  4  5  8  10  16  20  25  32  40  50  80  100  125  160  200  250  400  500  625  800  1000  1250  2000  2500  3125  4000  5000  6250  10000  12500  20000  25000  50000  100000 
So for 128478 and 100000 that gives us a GCF value of: 2

Step 4:

For the last step we reduce the fraction. This just means writing the fraction in the simplest way. To do this we divide both the numerator and denominator by the GCF value we determined in step 3.

128478/100000

  =  

128478 ÷ 2/100000 ÷ 2

  =  

64239/50000

Good work! We have just walked through the steps on how to represent 1.28478 as a fraction.