Respuesta :

Answer

41/12

Step-by-step explanation:

convert mixed numbers into improper fractions 21/4-(3-7/6)

calculate 21/4 - 11/6

subtract fractions 41/12

Answer:

139/12

Step-by-step explanation:

51/4-(3-11/6)

1275-(3-11/16)

51/4-7/6

139/12