Question

6/15 - 1/3 - 1/15 = ?

Answer 1

6/15-1/3-1/15
aducem la acelasi numitor comun
6/15-5/15-1/15=0/15=0

Answer 2

6/15 simplificam prin 3=2/5
factorul comun al lui 5,3,15 este15
2/5 x 3=6/15
1/3 x 5=5/15
6/15 - 5/15- 1/15=0/15=0