Question

Efectuati calculele: a) (5/6 + 3/4) x 24/19 - (2/3 - 1/6) x 4/3; b) (1/6 + 7/9) x 18/17 + 2/3 x (1/7 - 1/21); c) (5/6 + 7/8) x 18/41 + 1/4 x 16/25 x (3/4 - 1/2 - 1/8); d) (5/12 - 3/18) x 4 + 1/11 + (4/3 - 1) x 3. Va rog mult!

Answer 1

(20/24+18/24)x24/19-1/2x4/3=38/24x24/19-2/3=6/3-2/3=4/3

b) (9/54+42/54)x18/17+2/3x(2/21)=51/54x18/17+4/63=1+4/63=67/63

C) (40/48+42/48)x18/41+1/4x16/25x1/8=9/12+1/50=37/50

d). 9/36x4+1/11+1/3x3=12/11+1=23/11