Question

Efetue as divisoes. (A) 9/3 : 5 (B) 8/15 : 3 (C) 6/7 : 3 (D) 4/7 : 9

Answer 1

a)
$\frac{9}{3} \div 5 \\ \frac{9}{3} \times \frac{1}{5} = \frac{9}{15} \\ simplificando \\ \frac{ {9}^{3} }{ {15}^{3} } = \frac{3}{5}$
b)
$\frac{8}{15} \div 3 \\ \frac{8}{15} \times \frac{1}{3} = \frac{8}{45}$
c)
$\frac{6}{7} \div 3 \\ \frac{6}{7} \times \frac{1}{3} = \frac{6}{21} \\ simplificando \\ \frac{ {6}^{3} }{ {21}^{3} } = \frac{2}{7}$
d)
$\frac{4}{7} \div 9 \\ \frac{4}{7} \times \frac{1}{9} = \frac{4}{63}$

Answer 2

Olá

a)

9/3 ÷ 5 => repita a 1 fração e inverta a segunda multiplicando.

9/3 x 1/5=> multiplique

9/15 ÷ 3

3/5

b)

8/15 ÷ 3

8/15 x 1/3

8/45

c)

6/7 ÷ 3

6/7 x 1/3

6/21 ÷ 3

2/7

d)

4/7 ÷ 9

4/7 x 1/9

4/63

Bons estudos