Question

3/10 - 2/15
-5/12 + 4/15

Answer 1

Ответ:

Пошаговое объяснение:

3/10 - 2/15 = 9/30 - 4/30 = 5/30 = 1/6

-5/12 + 4/15 = -25/60 + 16/60 = -9/60 = -3/20

Answer 2

$frac{3}{10} - frac{2}{15} = frac{3 times 3}{30} - frac{2 times 2}{30} = frac{9 - 4}{30} = frac{5}{30} = frac{1}{6}$
$- frac{5}{12} + frac{4}{15} = - frac{25}{60} + frac{16}{60} = - frac{9}{60} = - frac{3}{20}$