Question

Решите плз. (2 целые 3/5-5/8):19 целых 3/4

Answer 1

$(2 frac{3}{5} - frac{5}{8} ) div 19 frac{3}{4} = (2 frac{24}{40} - frac{25}{40} ) div frac{79}{4} = (2 - frac{1}{40} ) times frac{4}{79} = 1 frac{39}{40} times frac{4}{79} = frac{79 times 4}{40 times 79} = frac{1}{10} = 0.1$