Question

Am nevoie de ajutor cu cateva probleme mai plictisitoare

Answer 1

g) 3/4 - 1/12 * 4/1 - (8/6 - 3/6) = 3/4 - 1/3 - 5/6 = 9/12 - 4/3 - 10/12 = - 5/12
h) 4/3 * 9/2 - (8/4 - 3/4) = 6 - 5/4 = 24/4 - 5/4 = 19/4
i) 8/3 - ( 42/60 - 4/60) * 10/3 - 8/15 = 8/3 - 38/60 * 10/3 - 8/15 = 8/3 - 38/18 - 8/15 =
240/90 - 190/90 - 48/90 = 2/90 = 1/45
j) 6/24 + 4/24 - ( 15/6 - 18/6) * 2/3 = 10/24 + 3/6 * 2/3 = 5/12 + 2/6 = 5/12 + 4/12 = 9/12
a) 2/126 + 7/126 - 4/25 * 5/7 = 9/126 - 4/35 = 14 - 4/35 = 490/35 - 4/35 = 486/35
b) (1 + 15/4) * 1/6 - 1 = 19/4 * 1/6 - 1 = 19/24 - 24/24 = - 5/24
c) (48/140 - 49/140) : ( - 6/6 - 1/6) = - 1/140 * (- 7/6) = 1/120
d) (18/96 + 20/96) * 30/38 - 1/8 = 38/96 * 30/38 - 1/8 = 5/16 - 1/8 = 5/16 - 2/16 = 3/16
e) 3 - 2 : 3/6 + 1/9 = 3 - 2 * 6/3 + 1/9 = 3 - 4 + 1/9 = - 1 + 1/9 = - 9/9 + 1/9 = - 8/9
f) 5/6 * 3/1 : (36/24 - 20/24) = 5/2 * 24/16 = 15/4