Verified Answer :

there are four parts to a quarter so you divide 28 by 4:
28/4=7
and then because you want to know three quarters you just times 7 by 3:
7x3=21
therefore three quarters of 28 is 21

heyDB

3/828

Cancel 4 and 28
3
7

Multiply 3 by 7 to get 21.
21


3/4 of 28 is 21