The fraction of an hour he spends practicing each song will be 1/8.
A ratio is an ordered pair of integers a and b expressed as a/b, with b never equaling 0. A percentage is a mathematical expression in which two ratios are specified to be equal.
Given data;
Time for the piano lesson = 45 minutes = (3/4)60 minute
Number of songs to be practiced = 6
The fraction of an hour does he spend practicing each song is;
[tex]\rm \frac{3}{4} \times hour \times \frac {1}{6} \\\\\ \frac {1}{8} \ of \ an \ hour[/tex]
Hence, the fraction of an hour he spends practicing each song will be 1/8.
To learn more about the ratio, refer to the link;
https://brainly.com/question/14335762
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