Răspuns:
Explicație pas cu pas:
c)
= -3,7
d)
-1,9
g)
= -³⁾3/7-20/21=(-9-20 )/21 = -29/21
h)
³⁾5/6-²⁾3/8=(15-6)/18=11/18
k)
-²⁾21/4+9/8= (-42+9)/8= -33 /8
l)
²⁾31/7-121/14= (62-121)/14= -59/14
o)
³⁾15/8-⁴⁾23/6=(45-92)/ 24 = - 47/24
p)
-²⁾7/4+23/8=(- 14+23) /8= 9 /8
