• Matéria: Matemática
  • Autor: hinata6
  • Perguntado 9 anos atrás

quanto e (a) 5/9•7/8 (B) 3/5•3/4 (C)1•1/5•2/3 (D) 4/3•7/2•3/2

Respostas

respondido por: FDoutora
134
a)  \frac{5}{9} .  \frac{7}{8} =  \frac{5.7}{9.8 }  =  \frac{35}{72}

b)  \frac{3}{5} .  \frac{3}{4} =  \frac{3.3}{5.4} =  \frac{9}{20}

c)Perceba que 1 = 1/1
 1. \frac{1}{5} .  \frac{2}{3} =  \frac{1.1.2}{1.5.3} =  \frac{2}{15}

d)  \frac{4}{3} .  \frac{7}{2} .  \frac{3}{2} =  \frac{4.7.3}{3.2.2} = \frac{84}{12} = 7

hinata6: gracias
respondido por: fsjaque
38
a) (5/9) . (7/8) = 0,56 . 0.88 = 0,49
b) (3/5) . (3/4) = 0,60 . 0,75 = 0,45
c) 1 . (1/5) . (2/3) = 1 . 0,20 . 0,67 = 0,13
d) (4/3) . (7/2) . (3/2) = 1,33 . 3,50 . 1,50 = 6,98
Perguntas similares