Question

!!!!!!!!!!!???!?!! ​

Answer 1

Пошаговое объяснение:

$- 3 times frac{7}{10} + ( - 1 times frac{4}{15} ) = - frac{37}{10} + ( - frac{19}{15} ) = - frac{111}{30} - frac{38}{30} = frac{149}{30} = - 4 frac{29}{30}$