Question

va rog mult de tot!rapid ​

Answer 1

Răspuns:

- 3 si 1/24

Explicație pas cu pas:

a = -(3 si 1/4 - 4 si 1/8 + 2 si 1/6) + [ 4,08(3) - 5 si 5/6] = ?

3 si 1/4 = (3·4+1)/4 = 13/4

4 si 1/8 = (4·8+1)/8 = 33/8

2 si 1/6 = (2·6+1)/6 = 13/6

4,08(3) = (4083-408)/900 = 3675/900⁽²⁵ = 147/36⁽³ = 49/12

5 si 5/6 = (5·6+5)/6 = 35/6 =>

a = -(⁶⁾13/4 - ³⁾33/8 + ⁴⁾13/6) + (49/12 - ²⁾35/6)

a = -(78-99+52)/24 + (49-70)/12

a = -31/24 - ²⁾21/12

a = (-31-42)/24

a = -73/24 = - 3 si 1/24