Respuesta :

Answer:

2 15/28

Step-by-step explanation:

First: Convert any mixed numbers to fractions.

21/4−19/7

Applying the fractions formula for subtraction,

=(21×7)−(19×4)4×7     =147−7628   =71/28

Simplifying 71/28, the answer is:

2 15/28

I hope this helps! Please give me brainliest!