Answer : The conversion used is, [tex]1\text{ feet}=12\text{ inches}[/tex]
Explanation :
The conversion used :
[tex]1\text{ feet}=12\text{ inches}[/tex]
For example : To convert 10 feet into inches.
[tex]1\text{ feet}=12\text{ inches}[/tex]
[tex]10\text{ feet}=10\text{ feet}\times \frac{12\text{ inches}}{1\text{ feet}}[/tex]
[tex]=120\text{ inches}[/tex]
From this we conclude that, the conversion factor used in the numerator and denominator for 1 feet should be, [tex]\frac{12\text{ inches}}{1\text{ feet}}[/tex]
