Answer:
[tex]\frac{7}{4}[/tex]
Step-by-step explanation:
- Convert the mixed number into an improper fraction : [tex]\frac{5}{2}[/tex]
- Subtract how many liters Cara has already drank : [tex]\frac{5}{2}[/tex] - [tex]\frac{3}{4}[/tex]
- Transform the expression : [tex]\frac{10-3}{4}[/tex]
- Subtract the numbers : [tex]\frac{7}{4}[/tex]
