11/20 - 5/128/9 + 7/545/6 - 17/213/16 + 1/245/6 - 22/27

Ответ

Автор - akunyaastana

Ответ:

$frac{11}{20} - frac{5}{12} = frac{11 times 3}{20 times 3} - frac{5 times 5}{12 times 5} = frac{33}{60 } - frac{25}{60} = frac{8}{60} = frac{2}{15}$

Пошаговое объяснение:

$frac{8}{9} + frac{7}{54} = frac{8 times 6}{9 times 6} + frac{7}{54} = frac{48}{54} + frac{7}{54} = frac{55}{54} = 1frac{1}{54}$

$frac{5}{6} - frac{17}{21} = frac{5 times 7}{6 times 7} - frac{17 times 2}{21 times 2} = frac{35}{42} - frac{34}{42} = frac{1}{42}$

$frac{3}{16} + frac{1}{24} = frac{3 times 3}{16 times 3} + frac{1 times 2}{24 times 2} = frac{9}{48} + frac{2}{48} = frac{11}{48}$

$frac{5}{6} - frac{22}{27} = frac{5 times 9}{6 times 9} - frac{22 times 2}{27 times 2} = frac{45}{54} - frac{44}{54} = frac{1}{54}$