Sagot :
Answer:
[tex]18 \frac{31}{40} [/tex]
Step-by-step explanation:
[tex]12 \frac{2}{5} + 5 \frac{3}{4} - 9 \frac{3}{8} = n[/tex]
Convert to Improper Fraction
[tex] \frac{112}{5} + \frac{23}{4} - \frac{75}{8} [/tex]
Find the common denominator.
[tex] \frac{896}{40} + \frac{230}{40} - \frac{375}{40} [/tex]
Combine fractions.
[tex] \frac{751}{40} [/tex]
Simpify the numerator.
[tex]18 \frac{31}{40} [/tex]