Question

1-calcule as multiplicação: a)1/5.4/3= b) (+4/9).(-7/5)= c) (-3/2). (-5/7)= d) (-1/5).(+1/4)= e) 2/3.(-1/3)= f)-5/8.(-4/3)= g) (+4/5).(-1/3)= h)(-3/5).(-7/4)= *Calculos armados por favor, obrigada!❤*

Answer 1

a)(+1/5).(+4/3)= (1.4)/(5.3) 4/15  c)(-3/2).(-5/7)= (-3.-5)/(2.7) = 15/14  b)(+4/9).(-7/5)= (-4.7)/(9.5) = -28/45  d)(-1/5).(+1/4)= (-1.1)/(5.4) = -1/20  e)(+2/3).(-1/3)= (2.-1)/(3.3) = -2/9  f)(-5/8).(4/3)= (-5.4)/(8.3) = -20/24 (÷4) = -5/6  g)(+4/5).(-1/3)= (4.-1)/(5.3) = -4/15  h)(-3/5).(-7/4) = (-3.-7)/(5.4) = 21/20