Misha used 1/4 of a carton of 12 eggs to make on omelet. how many eggs she use? explain

By multiplication, 12*(1/4) = 3
by division, 12/4 = 3
in words, a quarter of 12 is 3

12 * 1/4 >> 12/4 
= 3 

12 divided by 4 equals 3. 

if you cut the carton of eggs into 4 different sections, there would (hypothetically) be 3 in each section.

check:
3*4=12

Just turn the whole gym into pie