Question

Calcule as divisões de frações:
a) ¾ : 5/6 =
b) 7/5 : 3/10 =
c) 2/3 : 8/9 =
d) 1/6 : 2/3 =
e) 2/5 : 4/3
f) 3/8 : 9/10
g) 8/5 : 4/2
h) 7/8 : 2/8
por favor!!!​

Answer 1

Explicação passo-a-passo:

$a) \frac{3}{4} \div \frac{5}{6} = \frac{3}{4} \times \frac{6}{5} = \frac{18}{20} = \frac{9}{10}$

$b) \frac{7}{5} \div \frac{3}{10} = \frac{7}{5} \times \frac{10}{3} = \frac{70}{15} = \div \frac{5}{5} = \frac{14}{3}$

$c) \frac{2}{3} \div \frac{8}{9} = \frac{2}{3} \times \frac{9}{8} = \frac{18}{24} = \div \frac{6}{6} = \frac{3}{8}$

$d) \frac{1}{6} \div \frac{2}{3} = \frac{1}{6} \times \frac{3}{2} = \frac{3}{12} = \div \frac{3}{3} = \frac{1}{4}$

$e) \frac{2}{5} \div \frac{4}{3} = \frac{2}{5} \times \frac{3}{4} = \frac{6}{20} = \frac{3}{10}$

$f) \frac{3}{8} \div \frac{9}{10} = \frac{3}{8} \times \frac{10}{9} = \frac{30}{72} = \frac{6}{6} = \frac{5}{12}$

$g) \frac{8}{5} \div \frac{4}{2} = \frac{8}{5} \times \frac{2}{4} = \frac{16}{20} = \frac{4}{5}$

q

$h) \frac{7}{8} \div \frac{2}{8} = \frac{7}{8} \times \frac{8}{2} = \frac{56}{16} = \frac{23}{8}$

Answer 2

Explicação passo-a-passo:

3/4 : 5/6

3/4*6/5

18/20(÷2)

9/10

7/5 : 3/10

7/5*10/3

70/15(÷5)

14/3

2/3 : 8/9

2/3*9/8

18/24(÷6)

3/4

1/6 : 2/3

1/6*3/2

3/12(÷3)

1/4

2/5 : 4/3

2/5*3/4

6/20(÷2)

3/10

3/8 : 9/10

3/8*10/9

30/72(÷6)

5/12

8/5 : 4/2

8/5*2/4

16/20(÷4)

4/5

7/8 : 2/8

7/8*8/2

56/16(÷8)

7/2