Răspuns:
Explicație pas cu pas:
(-4/5)*(-5/8 + 1/4) = (-4/5)*(-5/8 + 2/8) = (-4/5)*(-3/8) = 12/40 = 3/10
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(-4/5)*(-5/8 + 1/4) = (-4/5)*(-5/8) + (-4/5)*(1/4) = 20/40 - 4/20 = 10/20 - 4/20
= 6/20 = 3/10
