what is 17777777778/10000000000 in simplest form as a fraction

Answer 1

Note that both the numerator and denominator are even. Therefore the first simplification you can apply is to divide both by two, yielding 8,888,888,889 / 5,000,000,000. This turns out to be the answer, because the prime factorization of the numerator involves only 2s and 5s, and the numerator is odd, implying it's not a multiple of 2, and the last digit is 9, implying the numerator is not a multiple of 5 either. Therefore there is no further simplification for this fraction.