Either one is correct; the meaning is the same.
It is 15.5 or 15 and a half.
7 and a half
1/15
It is: 7.5
1 half in percentage = 1/2% (one-half percent)
15
Half and Half - 2002 The Big Phat Mouth Episode Part 1 1-15 was released on: USA: 17 February 2003
7 1/2
7 1/2 = 15/2 When dividing by a fraction, invert and multiply 7 1/2 divided by 1/2 = 15/ 2 x 2/1 = 15
1/2 of 8/15 = 4/15
15 multiplied by 1/2 is 7 1/2
15.