Question

1) - 1 2/3 + 4 1/5 2)-2 1 /3 - 4 1/5



срочно пж ​

Answer 1

Пошаговое объяснение:

1)

$- 1 \frac{2}{3} + 4 \frac{1}{5} = - \frac{3 + 2}{3} + \frac{4 \times 5 + 1}{5} = - \frac{5}{3} + \frac{4 \times 5 + 1}{5} = - \frac{5}{3} + \frac{20 + 1}{5} = - \frac{5}{3} + \frac{21}{5} = - \frac{25}{15} + \frac{63}{15} = \frac{ - 25 + 63}{15} = \frac{38}{15} = 2 \frac{8}{15}$

2)

$- 2 \frac{1}{3} - 4 \frac{1}{5} = - \frac{6 + 1}{3} - \frac{4 \times 5 + 1}{5} = - \frac{7}{3} - \frac{4 \times 5 + 1}{5} = - \frac{7}{3} - \frac{20 + 1}{5} = - \frac{7}{3} - \frac{21}{5} = - \frac{ 35}{15} - \frac{63}{15} = \frac{ - 35 - 63}{15} = - \frac{98}{15}$