Respuesta :

Answer:

19/20

Step-by-step explanation:

3 1/5 - 2 1/4

16/5 - 9/4

64/20 - 45/20

19/20

Answer: 19/20

Step-by-step explanation:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

3 1/5 becomes 16/5

2 1/4 becomes 9/4

LCD = 20