6½ - 2¾ + 4½ =.........

Answer :

6½ - 2¾ + 4½

6½ = ( 2 x 6 ) + 1 = 13/2
2¾ = ( 2 x 4 ) + 3 = 11/4
4½ = ( 2 x 4 ) + 1 = 9/2

Maka :
6½ - 2¾ + 4½
= ( 13/2 - 11/4 ) + 9/2
= ( 26/4 - 11/4 ) + 9/2
= 15/4 + 9/2
= 15/4 + 18/4
= 33/4
= 7 5/4

I HOPE THIS HELPS
STOP COPAST !!!

6 1/2 - 2 3/4 + 4 1/2 = 6 2/4 - 2 3/4 + 4 2/4
                                = 8 1/4