Question

12 2/7 -8
3 10/50- 2 26/50
4+ 32/50
9-1 4/7
помогите пж​

Answer 1

Пошаговое объяснение:

$12 \frac{2}{7} - 8 = 12 + \frac{2}{7} - 8 = 4 + \frac{2}{7} = 4 \frac{2}{7}$

$3 \frac{10}{50} - 2 \frac{26}{50} = \frac{10 + 3 \times 50}{50} - \frac{26 + 2 \times 50}{50} = \frac{160}{50} - \frac{126}{50} = \frac{160 - 126}{50} = \frac{34}{50} = \frac{17 \times 2}{25 \times 2} = \frac{17}{25}$

$4 + \frac{32}{50} = 4 + + \frac{32}{50} = 4 + \frac{32}{50} = 4 + \frac{16 \times 2}{25 \times 2} = 4 + \frac{16}{25} = 4 \frac{16}{25}$

$9 - 1 \frac{4}{7} = 9 - 1 - \frac{4}{7} = 8 - \frac{4}{7} = \frac{8 \times 7}{7} - \frac{4}{7} = \frac{56}{7} - \frac{4}{7} = \frac{56 - 4}{7} = \frac{52}{7} = \frac{7 \times 7 + 3}{7} = 7 \frac{3}{7}$