To write 0.22222222 as a fraction you have to write 0.22222222 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number. 0.22222222 = 0.22222222/1 = 2.2222222/10 = 22.222222/100 = 222.22222/1000 = 2222.2222/10000 = 22222.222/100000 = 222222.22/1000000 = 2222222.2/10000000 = 22222222/100000000.
