Question

calculează scoțănd factorul comun a) 1 supra 12 • 1 supra 2 + 1 supra 12 • 1 supra 3 + 1 supra 12 • 13 supra 6.b) 1 supra 8 • 5 supra 6 - 4 supra 9 ▪ 1 supra 8 + 1 supra 8 • 1 supra 18.c) 2 supra 12 • 6 1supra 13 • 6 +12supra 13 6
vă rog vreau rezolvarea ❤​

Answer 1

Salut!

a) 1/12 x 1/2 + 1/12 x 1/3 + 1/12 x 13/6=

1/12(1/2+1/3+13/6)=

1/12(3/6+2/6+13/6)=

1/12 x 18/6=

=3/12

=1/4

b) 1/8x5/6-4/9x1/8+1/8x1/18=

1/8(5/6-4/9+1/18)=

1/8(15/18-8/18+1/18)=

1/8x8/18=

=1/18

c) 2/12 x 61/13x6 +12/13=(e prea ciudat la punctul c..., si nici nu e factor comun)

1/6 x 61/78 +12/13=

61/13+12/13=

=73/13

Succes!