2 1per2 × 7 per 8 : 0,25=

2 1/2 x 7/8 : 25/100
= 5/2 x 7/8 x 100/25
= 35/16 x 100/25
= 175/20
= 8,75

Semoga membantu 🙂

5/2 × 7/8 : 25/100
5/2 × 7/8 × 100/25
= 35/4
= 8 ¾