Question

помогите пж дам 10б​

Answer 1

$39 \frac{5}{7} \times 3 \frac{15}{37} - 2 \frac{5}{7} \times 3 \frac{15}{37} = 3 \frac{15}{37} \times (39 \frac{5}{7} - 2 \frac{5}{7} ) = 3 \frac{15}{37} \times37 = \frac{126 \times 37}{37} = 126$

$2 \frac{5}{9} \times 1 \frac{13}{28} + 4 \frac{4}{9} \times 1 \frac{13}{28} = 1 \frac{13}{28} \times (2 \frac{5}{9} + 4 \frac{4}{9} ) = 1 \frac{13}{28} \times 7 = \frac{41 \times 7}{28} = \frac{41}{4} = 10.25$