Question

Помогите! 1)2 3/4:1/2 2) (4/5:4/17):2/5 3) 0.4: 2/5

Answer 1

$1)2 \frac{3}{4} \div \frac{1}{2} = \frac{11}{4} \times \frac{2}{1} = \frac{11}{2} \\ \frac{11}{2} \div \frac{1}{2} = \frac{11}{2} \times \frac{2}{1} = 11$

$2) \frac{4}{5} \div \frac{4}{17} = \frac{4}{5} \times \frac{17}{4} = \frac{17}{5} \\ \frac{17}{5} \div \frac{2}{5} = \frac{17}{5} \times \frac{5}{2} = \frac{17}{2} = 8 \frac{1}{2}$

$3) \frac{4}{10} \div \frac{2}{5} = \frac{4}{10} \times \frac{5}{2} = 1$

Answer 2

Ответ:

1) 126целых1/2

2) 8целых1/2

3) 1