Răspuns:
a) 7/16-11/42-9/16+17/42=7/16-9/16-11/42+17/42=2/16+6/42
b) 3 5/11+1 3/8+2 5/6-4 6/11=38/11+11/8+17/6-50/11=38/11-50/11+11/8+17/6=-12/11+11/8+17/6
c) -1,23+2,14+7,38-5,77+1,62=0,91+1,61+1,62=2,52+1,62=4,14
d) -9,39+0,74-10,61+3,26+6,25= -8,65-7,35+6,25= -16+6,25= -9,75
Explicație pas cu pas:
sper ca te-am ajutat