Question

va rog ajutați mă!!!!!!!l!

Answer 1

e)simplifici 4 cu 8 ,6 cu 12 si obtii
-2x(-1)X(-1/2)=2X(-1/2)=-1

f)
simplifici 3 cu 15 ,7 cu 14 si obtii
1x(-19/36)x(-5/2)=1x95/72=95/72

g)(-2,5)x7,(3)x(-4)=
(-25/10)x(73-7 totulpe9)x(-4)=
(-5/2)x66/9x(-4)=(-5/2)x22/3x(-4)=
simplificam 2 cu 22
=-5x11/3x(-4)=+220/3
h)(-9/4)x(-16/5)x10=-9x(-4)x10=+360

i)-4/33x27/-8x-11/-9=-4/33x(-27/8)x11/9=SIMPLIFICAM 9 CU 27 APOI 33 CU 3
=+4/88X11=44/88=+2
J)-3/4x2/10x1/-3x12=-3/4x1/5x(-4)=+3/5

k)(-9/11)x99/100x50/-3=  simplificam 100 cu 50
(-9/11)x99/2x(-1/3)=simplificam 9 cu 3
=(-3/11)x99/2x(-1)=+297/22