Question

alguem me ajuda pfvr é urgente​

Answer 1

Explicação passo-a-passo:

Resolução!

A)

$\dfrac{12}{6} \times \dfrac{10}{24}$

$\dfrac{120 {}^{ \div 24} }{144 {}^{ \div 24} }$

5/6

B)

$\dfrac{126}{13} \times \dfrac{39}{3}$

$\dfrac{4914}{39}$

126

C)

$\dfrac{14}{24} \times \dfrac{16}{40}$

$\dfrac{224 {}^{ \div 32} }{960 {}^{ \div 32} }$

7/30

D)

$\dfrac{10}{20} \times \dfrac{7}{21}$

$\dfrac{70 {}^{ \div 70} }{420 {}^{ \div 70} }$

1/6

Espero ter ajudado!!!

Answer 2

Resposta:

$a) \frac{12}{6} \times \frac{10}{24} = 2 \times \frac{5}{12} = \frac{10}{12} = \frac{5}{6}$

$b) \frac{126}{6} \times \frac{39}{3} = 21 \times 13 = 273$

$c) \frac{14}{24} \times \frac{16}{40} = \frac{7}{12} \times \frac{4}{10} = \frac{28}{120} = \frac{7}{30}$

$d) \frac{10}{20} \times \frac{7}{21} = \frac{1}{2} \times \frac{1}{3} = \frac{1}{6}$