Question

Rezolvati folosind factorul comun.Dau coroana.Ex 12​

Answer 1

a) 1/77 * (-2/3 + 11/6) = 1/77 * (-4/6 + 11/6) = 1/77 * 7/6 = 1/66

b) 0,3 * (-5/6 + 7/18 - 1/45) = 0,3 * (-75/90 + 25/90 - 2/90) =

= 0,3 * (-50/90 - 2/90) = 0,3 * (-52/90) = 0,3 * (-26/45)

Answer 2

a) 1/77x(-2/3)+11/6x1/77=1/77(-2/3+11/6)=1/77(-4/6+11/6)=1/77x7/6=7/462=1/66

b)(-0,3)x5/6+7/18x0,3-0,3x1/45=0,3(-5/6+7/18-1/45)=0,3(-15/18+7/18-1/45)=0,3(-8/18-1/45)=0,3(-4/9-1/45)=0,3(-20/45-1/45)=

=0,3x(-19/45)=5,7/45=57/450