Răspuns:
a)
(3/4 + 2/3 • 4) • 6/41 =
(3/4 + 8/3) • 6/41 =
41/12 • 6/41 =
1/2
b)
[7/5 • 15/14 + 3/2 : (9/4 - 3/2)] • 2/7 =
(3/2 + 3/2 • 4/3) • 2/7 =
(3/2 + 2) • 2/7 =
7/2 • 2/7 =
1
c)
(17/3 + 14/9 - 2) • 3/47 =
(51+14-18)/9 • 3/47 =
47/9 • 3/47 =
1/3
d)
(4 + 20/3 - 9/4 • 4/9) • 6/29 + 29/4 =
(4 + 20/3 - 1) • 6/29 + 29/4 =
29/3 • 6/29 + 29/4 =
2 + 29/4 =
37/4 =
9 întregi 1/4
