Question

Bantu teman rada binggung dgn teman 12 2/5- 8 5/8 dgn caranya tq

Answer 1

12 2/5 - 8 5/8 =
 KPK dari 5 dan 8 = 40
12 2/5 - 8 5.8 = 12 (2.8)/(5.8) - 8 (5.5)/(8.5)
12 16/40 - 8 25/40= (11-8) + ( (16+40 /40) - 25/40)
=3 + (56/40-25/40)
= 3+ 31/40 = 3 31/40