to divide a fraction, divide the numerator by the denominator: 1/2 divide 1 by 2 and get .5
to divide a fraction by another number, flip the second number so the numerator becomes the denominator and the denominator becomes the numerator then multiply:
1 1 1 2 2
-- / -- = -- • -- = -- = 1
2 2 2 1 2
hope that helped! ;)