Question

(3/2+7/5+5/9) + (3/2+8/5+22/9)=?

Answer 1

Explicație pas cu pas:

(3/2+7/5+5/9)+(3/2+8/5+22/9)= 3/2+7/5+5/9+3/2+8/5+22/9=6/2+15/5+27/9=3+3+3=9.

Answer 2

(3*9*5/2*5*9+7*2*9/2*5*9+5*2*5/2*5*9)+(3*5*9/2*5*9+8*2*9/2*5*9+22*2*5/2*5*9)

=(135/90+126/90+50/90)+(135/90+144/90+220/90)

=311/90+499/90

=810/90

=9