Question

8,5-2 1/4*(6-3 1/3:2,5)

Answer 1

8,5-2 1/4*(6-3 1/3:2,5)=-2
1)3 1/3:2,5=10/3:25/10=10/3*10/25=4/3=1 1/3
2)6-1 1/3=5 3/3-1 1/3=4 2/3
3)2 1/4*4 2/3=9/4*14/3=21/2
4)8,5-21/2=85/10-21/2=17/2-21/2=-4/2=-2