Question

Am nevoie de ajutor!

Answer 1

Răspuns:

1-1/2=1/2 1-1/3=2/3 1-1/4=3/4

a)1-1/2=1/2 1-1/3=2/3 1-1/4=3/4.....1-1/2019=1/1

b)1+1/2=3/2 1+1/3=4/3 1+1/4=5/4 1+1/2019=2028

c)2+1/2=5/2 2+1/5=5/5=1 2+1/11=10/11 2+1/23=22/23

d)2-1/2=3/2 2-1/3=3/3=1 2-1/5=3/5 2-1/9=3/9