Given:
![(9)/(4)-(7)/(5)](https://img.qammunity.org/2023/formulas/mathematics/college/2c65bi5s7zbvdfiy3fkuz1ze2tskkodof3.png)
Here, we are to perform the subtraction o fractions.
To subtract the fractions, find the Lowest common multiple of the denominators.
LCM of 4 and 5 = 20
Divide the LCM by each denominator and multiply by their respective numerators.
Thus, we have:
![\begin{gathered} (9)/(4)-(7)/(5) \\ \\ (5(9)-4(7))/(20) \\ \\ =(45-28)/(20) \\ \\ =(17)/(20) \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/ghccuzi0vyshegxycsi5a3q6ltwiupvc62.png)
ANSWER:
![C\text{. }(17)/(20)](https://img.qammunity.org/2023/formulas/mathematics/college/4lznh4tsxk20ii0mrsl2wpf1myb2jqfueq.png)