Question

me ajudemnm pfv presiso muitoo disso ​

Answer 1

Resposta:

$b) \: \: mmc(7.10) = 70 \\ \frac{40 - 56}{70} = - \frac{ 16}{70} = - \frac{8}{35} \\ \\ c)mmc(5.6) = 30 \\ \frac{12 + 15}{30} = \frac{27}{30} = \frac{9}{10} \\ \\ d) - \frac{3}{7} \\ \\ e)mmc(10.2) = 10 \\ \frac{3 + 20}{10} = \frac{23}{10} \\ \\ f)mmc(9.6) = 18 \\ \frac{8 - 24}{18} = - \frac{16}{18} = - \frac{8}{9}$