Question

am nevoie urgent de raspunsurile de la exercițiile 4 si 5 va rog​

Answer 1

4.

a)5/3+44/6 -7= 5/3+22/3 -7 = 5+22/3 -7 = 27/3 -7 = 9-7 = 2

b) 8/15-2/5 +1= 8-6+15/15 = 17/15

c) 3/5-7/12+4/15 = 36-35+16/60= 17/60

d)1- 4/27+5/18= 54-8+15/54 =61/54 = 1 întreg 7/54

e)25/8-27/24-37/37 =25/8-9/8 -1 = 25-9/8 -1 = 16/8 -1 =2-1= 1

f)18/18-15/30+9/6 = 2/2-1/2+3/2 = 2-1+3/2 =4/2= 2

5.

a)1/3+1/4+1/5+2/3+3/4+4/5 = 1+2/3 + 1+3/4 + 1+4/5 =3/3+4/4+5/5=1+1+1=3

b)5/2+7/3+11/6-3/2-4/3-5/6= 5-3/2 + 7-4/3 + 11-5/6=2/2+3/3+6/6= 1+1+1= 3