Question

10. Efectuati:
d) 17/60 : 17/3 + (5/2 - 2 1/3 * 5/7)*(13*5/26+1/2)

Answer 1

Explicație pas cu pas:

d) 17/60 : 17/3 + (5/2 - 2 1/3 * 5/7)*(13*5/26+1/2) =

17/60 × 3/17 + ( 5/2 - 7/3 × 5/7) × (13 × 5/26 + 1/2) =

1/20 + ( 5/2 - 5/3) × (5/2 + 1/2) =

1/20 + (15 - 10)/6 × 6/2 =

1/20 + 5/6 × 6/2 =

1/20 + 5/2 = 1/20 + 50/20 = 51/20