Change one hundred and two thousandths (.102) into a vulgar fraction of the same value.
He wondered if 6/4 was a vulgar fraction, and if so, he thought it would be better to express it as a mixed number, 1½.
A vulgar fraction is reduced to a decimal by dividing the numerator (increased sufficiently with ciphers) by the denominator.
Expressed as a vulgar fraction it is 2/3; but as a decimal fraction it is .6666 ad infinitum.