Question

Scrieti factorul comun si apoi efectuati:

[tex] -\frac{3}{8} + \frac{1}{2} +(- \frac{5}{6} )+(- \frac{1}{2} )=


0,8- (-\frac{3}{14} )+0,8[/tex] × $(+ \frac{5}{21} )+0,8$×$(- \frac{8}{35} )=$

Answer 1

-3/8+1/2+(-5/6)+(-1/2)=1/2*(1-1) -3/8-5/6=0-3/8-5/6= -12/48-40/48= -52/48=
  = -13/12

0,8 + 3/14 +0,8 *5/21 +0,8 * -8/35= 0,8* (3/14+5/21-8/35)=
=0,8*( 45/210+50/210-48/210)= 0,8*47/210=94/525