4.5 blocks of clay
Step-by-step explanation:
If two students share 9 blocks of clay equally, let each amount of clay each get = y
2 students = 9 blocks clay
1 student = y
cross multiply:
2(y) = 1(9)
2y = 9
Divide both sides by 2:
2y/2 = 9/2
y = 4.5
Each students will get 4.5 blocks of clay