Given:
[tex]\frac{9}{4}-\frac{7}{5}[/tex]
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:
[tex]\begin{gathered} \frac{9}{4}-\frac{7}{5} \\ \\ \frac{5(9)-4(7)}{20} \\ \\ =\frac{45-28}{20} \\ \\ =\frac{17}{20} \end{gathered}[/tex]
ANSWER:
[tex]C\text{. }\frac{17}{20}[/tex]
