It is very simple to convert hours to fractions. For example. If we sleep for 8 hours in a day, go to school for 8 hours, do our homework in 3 hours, meals 2 hours, recreation 3 hours then we can show them in fractions as below:

Fraction of sleep in the whole day= 8/24 = 1/3

Fraction of school time in the whole day= 8/24=1/3

Fraction of homework in the whole day=3/24 = 1/8

Fraction of meals in the whole day = 2/24 = 1/12

Fraction of recreation time in the whole day = 3/24 = 1/8

The sum of all the fractions above must equal 1.

Fraction of sleep in the whole day= 8/24 = 1/3

Fraction of school time in the whole day= 8/24=1/3

Fraction of homework in the whole day=3/24 = 1/8

Fraction of meals in the whole day = 2/24 = 1/12

Fraction of recreation time in the whole day = 3/24 = 1/8

The sum of all the fractions above must equal 1.