Question

4) Efetue os cálculos, quando possível, simplifique o resultado :
a) 1/7 : 4/5 = *
1 ponto


b) 5/2 : 6/10 = *
1 ponto
c) 2/3 : 1/6 = *
1 ponto
d) 6/4 : 2/3 = *
1 ponto
e) 5/20 : 4/3 = *
1 ponto
f) 1/4 : 5/6 =

Answer 1

Resposta:

$\frac{1}{7} \div \frac{4}{5} \\ \\ = \frac{1}{7} \times \frac{5}{4} \\ \\ = \frac{5}{28}$

notes:

seimbangkan poin dgn soal

Answer 2

a) 1/7÷4/5=

1×5/7×4=

5/28 (já está simplificado)

b) 5/2÷6/10=

5×10/2×6=

50/12= 25/6

c) 2/3÷1/6=

2×6/3×1=

12/3= 4/1

d) 6/4÷2/3=

6×3/4×2=

18/8= 9/4

e) 5/20÷4/3=

5×3/20×4=

15/80= 3/16

f) 1/4÷5/6=

1×6/4×5=

6/20= 3/10