Question

[1-1/4] ×[1-1/5]×[1-1/6]×[1-1/7]×[1-1/7]

Answer 1

Ответ:

18/49

Пошаговое объяснение:

[1-1/4] ×[1-1/5]×[1-1/6]×[1-1/7]×[1-1/7]

$1-\frac{1}{4} =\frac{3}{4} \\\\1-\frac{1}{5} =\frac{4}{5} \\\\1-\frac{1}{6} =\frac{5}{6} \\\\1-\frac{1}{7} =\frac{6}{7}\\\\\frac{3}{4} *\frac{4}{5} *\frac{5}{6} *\frac{6}{7} *\frac{6}{7} =3*\frac{6}{49} =\frac{18}{49}$