Question

Помогите пож.(4 2/5 - 3 1/10) × 1 3/7

Answer 1

1). (22/5-31:10)х3/7
2). 13/10х3/7
3). 39/70
Ответь 39/70

Answer 2

$(4 \frac{2}{5} - 3 \frac{1}{10} ) \times 1 \frac{3}{7} \\ ( 4 \frac{4}{10} - 3 \frac{1}{10} ) \times 1 \frac{3}{7} \\ 1 \frac{3}{10} \times 1 \frac{3}{7} \\ \frac{13}{10} \times \frac{10}{10} = \frac{130}{100} = \frac{13}{10} = 1 \frac{3}{10}$