Question

Прошу помогите)))))

Answer 1

$1.02 + ( - 1 \frac{1}{50} ) + ( - 1 \frac{1}{15} ) = \frac{51}{50} - 1 \frac{1}{50} - 1 \frac{1}{15} = \frac{51}{50} - \frac{51}{50} - \frac{16}{15} = - \frac{16}{15} = - 1 \frac{1}{15}$