Answer:

Step-by-step explanation:
Cross-multiply to simplify:

Divide both sides by 4 to isolate
:

Answer:black
Step-by-step explanation:
If you would like to know how much do you have to add to 3 7/8 to get 7, you can calculate this using the following steps:
3 7/8 = 31/8
7 - 3 7/8 = 7 - 31/8 = 56/8 - 31/8 = 25/8 = 3 1/8
The correct result is 3 1/8 or 25/8.