Question

помогите
( - 1. 5/9 × 2. 1/7 + 1. 7/12) × 1. 1/7 =???? ​

Answer 1

Ответ:

$( - 1 \frac{5}{9} \times 2 \frac{1}{7} + 1 \frac{7}{12} ) \times 1 \frac{1}{7} = (- \frac{14}{9} \times 2 \times \frac{1}{7} + \frac{19}{12} ) \times \frac{1}{7} = ( - \frac{2}{9} \times 2 + \frac{19}{12} ) \times \frac{1}{7} = ( - \frac{4}{9} + \frac{19}{12} ) \times \frac{1}{7} = \frac{41}{36} \times \frac{1}{7} = \frac{41}{252}$