Question

c) 2,6 + (-3--)- g) 2-/+ (-3) = i) - 5,2 + (-31) - k) 3+ [-3.(6)]= R:-9/10 R:-2/5 R: -8,4 R:-1/2 0 1 ² + ( - ² - 3) = 1₁) - 4 + (- 3 - ) + ( - 2 - ) - h) j) 4+ [-1,(3) + 1/6] = 0-3 + (-2+36- 10 . R: -5/6 R:-39/4 R: 17/6 R:-71/10. va rog repedeee dau coroana​

Answer 1

a)1/2+2/3:4/9=
=1/2+2/3 × 9/4=
=1/2+3/2=2

b)1/12+4/5:(1/2-1/3)=
=1/12+4/5:[3/6-2/6]
=1/12+4/5:1/6
=1/12+4/5 ×6
=1/12+24/5
=5/60+288/60
=293/60=
=4,88(3)


c) 2:(2/3)²+11/5:11/10=
=2: 4/9+11/5 ×10/11=
=2 ×9/4+2=
=9/2+2=
=(9+4)/2=
=13/2=
=6,5

d) (1/4+7/6)*15/34+3/2*(1/3-1/21)=
=(3/12+14/12)*15/34+3/2*(7/21-1/21)=
=17/12 *