Question

Calculează cât mai rapid posibil:
A) 1/3+1/4+1/5+2/3+3/4+4/5
B) 5/2+7/3+11/6-3/2-4/3-5/6​

Answer 1

Răspuns:

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

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

Answer 2

Răspuns:

a) 3+4+5+6+12+20

=7+11+22

=40

b) 10+21+66-6-12-30

=31+60-12-30

=91-12-30

=79-30=49

Sper ca te am ajutat!:)