Question

calculează 1/5+7/15+5/8​

Answer 1

=3/15+7/15+5/8
=10/15+5/8
=80/120+75/120
=155/120
=31/24

Answer 2

Răspuns:

Explicație pas cu pas:

1/5 + 7/15 + 5/8 = 31/24

= ( 3/15 + 7/15 ) + 5/8 =

= 10/15 + 5/8 =

= ( 10:5)/(15:5) + 5/8 =

= 2/3 + 5/8 =

= (8×2)/(8×3) + (3×5)/(3×8) =

= 16/24 + 15/24 =

= 31/24 =

= 1 intreg si 7/24