Question

Записати у вигляді неправильного дробу
5 3/7 | 5 1/17 | 23 17/19 | 17 21/172

Answer 1

$5 \frac{3}{7} = \frac{5 \times 7 + 3}{7} = \frac{35 + 3}{7} = \frac{39}{7} \\ 5 \frac{1}{17} = \frac{5 \times 17 + 1}{17} = \frac{85 + 1}{17} = \frac{86}{17} \\ 23 \frac{17}{19} = \frac{23 \times 19 + 17}{19} = \frac{437 + 17}{19} = \frac{454}{19} \\ 17 \frac{21}{172} = \frac{172 \times 17 + 21}{172} = \frac{2924 + 21}{172} = \frac{2945}{172}$