Răspuns:
Explicație pas cu pas:
a)
-1/10 - 3/5 + 1/2 = -1/10 - 6/10 + 5/10 = -7/10 + 5/10 = -2/10 = -1/5
b)
8/3 - 1/6 + 3/2 - 5/12 = 32/12 - 2/12 + 18/12 - 5/12 = 43/12
c)
5/16 - 3/8 - 7/4 = 5/16 - 6/16 - 28/16 = -29/16
d)
-4/7 - 2/21 + 11/12 - 9/14
= -12/21 - 2/21 + 11/12 - 9/14
= -14/21 + 11/12 - 9/14
= -2/3 + 11/12 - 9/14
= -8/12 + 11/12 - 9/14
= 3/12 - 9/14
= 1/4 - 9/14
= 14/56 - 36/56 = -22/56 = -11/28
e)
1/48 - 3/16 + 5/24 = 1/48 - 9/48 + 10/48 = 2/48 = 1/24
