Question

Stabiliți care relații sunt adevarate si care false. a)2/3+10/15+16/24=2 b)7/45+11/5-8/9=0 c)7/3-17/63+8/9=62/21 d)7/10+5/100+12/80=3/5 e)2/3+1/4+3/5+5/6=47/20 f)4/5+5/4-2/5-3/4+1/20=23/20 g)2/5+1/6+3/4+1/3=103/60 h)15/63+11/15+11/18=211/630
Dau coroana.

Answer 1

Răspuns

a) Adevărat;

b) Fals

c) Adevărat;

d) Fals

e) Adevărat;

f) Fals;

g) Fals;

h) Fals

Explicație pas cu pas:

a)2/3+10/15+16/24=2  ; 6/3; Adevărat;

b)7/45+11/5-8/9=0; 96/45; Fals

c)7/3-17/63+8/9=62/21; Adevărat;

d)7/10+5/100+12/80=3/5; 9/10; Fals

e)2/3+1/4+3/5+5/6=47/20; Adevărat;

f)4/5+5/4-2/5-3/4+1/20=23/20; 19/20; Fals;

g)2/5+1/6+3/4+1/3=103/60; 33/20; Fals;

h)15/63+11/15+11/18=211/630; 997/630; Fals