Question

Va rog ajutați-mă...am nevoie de ele pana luni la ora 10-11:00 (16.12.2019)​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

(-5/12 + 1/6)*7/2 = (-5/12 + 2/12)*7/2 = -3/12*7/2 = -1/4*7/2 = -7/8

b)

(-1/18 + 1/12)*(-5/6) = (-2/36 + 3/36)*(-5/6) = 1/36*(-5/6) = -5/216

c)

(-7/39 + 11/13)*(-3/2) = (-7/39 + 33/39)*(-3/2) = 26/39*(-3/2) = 2/3*(-3/2) = -1

d)

(-1/14 + 4/21)*11/5 = (-3/42 + 8/42)*11/5 = 5/42*11/5 = 11/42

e)

(-8/29)*(-7/24 -5/16) = (-8/29)*(-14/48 - 15/48) = (-8/29)*(-29/48) = 8/48 = 1/6

f)

(-3)*(1/60 - 4/15) = (-3)*(1/60 - 16/60) = (-3)*(-15/60) = 15/20 = 3/4

g)

-1/32*16/15*(-9/2) = 3/20

h)

-1/7

i)

-1/60

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