Respuesta :

Answer:

5/4

Step-by-step explanation:

3 - 1 3/4
=2 4/4 - 1 3/4
=1 1/4

Since 3 can be converted to 2 4/4 we can use that to calculate 1 3/4 alot more easier.

Hope this helps, pls mark as brainliest.