Question

efetue as divisões de frações e dê de o resultado na forma de fração irredutível:
a)2/3÷2/5
b)1/9÷4/36
c)17/13÷51/117
d)2/15÷3/125
e)2/3÷6/8
f)2/3÷5/7
g)2/3÷7/9
h)8/3÷15/5

Answer 1

Explicação passo-a-passo:

a)

$\frac{2}{3} \div \frac{2}{5} = \frac{2}{3} \times \frac{5}{2} = \frac{10}{6}$

b)

$\frac{1}{9} \div \frac{4}{36} = \frac{1}{9} \times \frac{36}{4} = \frac{36}{36} = 1$

c)

$\frac{17}{13} \div \frac{51}{117} = \frac{17}{13} \times \frac{117}{51} = \frac{1989}{663}$

d)

$\frac{2}{15} \div \frac{3}{125} = \frac{2}{15} \times \frac{125}{3} = \frac{250}{45}$

e)

$\frac{2}{3} \div \frac{6}{8} = \frac{2}{3} \times \frac{8}{6} = \frac{16}{18}$

f)

$\frac{2}{3} \div \frac{5}{7} = \frac{2}{3} \times \frac{7}{5} = \frac{14}{15}$

g)

$\frac{2}{3} \div \frac{7}{9} = \frac{2}{3} \times \frac{9}{7} = \frac{18}{21}$

h)

$\frac{8}{3} \div \frac{15}{5} = \frac{8}{3} \times \frac{5}{15} = \frac{40}{45}$