Question

(0.25+3/4):0.5-(1/2-1/3)x5/6

Answer 1

Răspuns:Vezi explicatia!

Explicație pas cu pas:Pentru a rezolva cat mai rapid,putem transforma fractia zecimala in ordinara sau invers! Iata:0,25=1/4....sau 3/4=0,75.  si 0,5=1/2,...           (1/4+3/4):1/2-(1/2-1/3)x5/6=4/4:1/2-(1/2-1/3)x5/6=4/4x2/1-(1/2-1/3)x5/6=2/1-1/6x5/6=2/1-5/36=72/36=2  (Evident se fac simplificarile de rigoare).    O dupa-amiaza perfecta!

Answer 2

Răspuns:

Explicație pas cu pas:

0,25 = 25/100 = 1/4

1/4 + 3/4 = 4/4 = 1

1 : 0,5 = 1 : 5/10 = 1 * 10/5 = 1 * 2 = 2

1/2 - 1/3 = 3/6 - 2/6 = 1/6

1/6 * 5/6 = 5/36

2 - 5/36 = 72/36 - 5/36 = 67/36