Răspuns:
5/16
Explicație pas cu pas:
15/16 - 1/2 - (7/8 - 0,75)
15/16 - 8/16 - (7/8 - 3/4)
7/16 - (7/8 - 6/8)
7/16 - 1/8
7/16 - 2/16
=5/16
