Question

CARE DIN EGALITATILE DE MAI JOS SUNT FALSE ? CORECTEAZA GRESELILE GASITE A)7PE8X8PE7 B)3INTREGI 4PE5=12PE15 C)1PE2X2PE3X3PE4=1PE4 D)2PE3X1PE3X4=4 E) (1PE3 +1PE6)X2=1 F)2PE3 X3PE2=1

Answer 1

b)

3 4/5 = (3x5 + 4)/5 = 19/5

3 4/5 = 12/15 (F)

c)

1/2 x 2/3 x 3/4 = 1/4 (A)

Simplificam 2 cu 2 si 3 cu 3

d)

2/3 x 1/3 x 4 = 8/9

2/3 x 1/3 x 4 = 4 (F)

e)

(1/3 + 1/6) x 2 = (2 + 1)/6 x 2 = 3/6 x 2 = 6/6 = 1

(1/3 + 1/6) x 2 = 1

f)

2/3 x 3/2 = 1 (A)

Simplificam 2 cu 2 si 3 cu 3