Răspuns:
Explicație pas cu pas:
b)
= 15 + 1/3+14/3
= 15 +( 1/3+14/3)
= 15+ (15/3)
= 15+5
= 20
-
c)
= 3+17 +( 2/9+7/9)
= 20 + (9/9)
= 20 +1
= 21
d)
= 14/19+5/19 +2/37+35/37
= 19/19 + 37/37
= 1+1
=2